

<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.tree.com/role/AccruedExpensesAndOtherCurrentLiabilities" xlink:href="tree-20181231.xsd#AccruedExpensesAndOtherCurrentLiabilities" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:href="tree-20181231.xsd#AccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables" xlink:href="tree-20181231.xsd#AccruedExpensesAndOtherCurrentLiabilitiesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AssetsHeldForSale" xlink:href="tree-20181231.xsd#AssetsHeldForSale" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AssetsHeldForSaleAssetsHeldForSaleScheduleForAssetAcquisitionDetails" xlink:href="tree-20181231.xsd#AssetsHeldForSaleAssetsHeldForSaleScheduleForAssetAcquisitionDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AssetsHeldForSaleAssetsHeldForSaleScheduleForAssetsHeldForSaleDetails" xlink:href="tree-20181231.xsd#AssetsHeldForSaleAssetsHeldForSaleScheduleForAssetsHeldForSaleDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AssetsHeldForSaleAssetsHeldForSaleScheduleForFutureRentalIncomeDetails" xlink:href="tree-20181231.xsd#AssetsHeldForSaleAssetsHeldForSaleScheduleForFutureRentalIncomeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/AssetsHeldForSaleTables" xlink:href="tree-20181231.xsd#AssetsHeldForSaleTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BenefitPlans" xlink:href="tree-20181231.xsd#BenefitPlans" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BenefitPlansDetails" xlink:href="tree-20181231.xsd#BenefitPlansDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BusinessAcquisitions" xlink:href="tree-20181231.xsd#BusinessAcquisitions" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BusinessAcquisitionsDetails" xlink:href="tree-20181231.xsd#BusinessAcquisitionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BusinessAcquisitionsDetailsProFormaInformation" xlink:href="tree-20181231.xsd#BusinessAcquisitionsDetailsProFormaInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BusinessAcquisitionsDetailsScheduleOfFiniteLivedIntangibleAssetsAcquired" xlink:href="tree-20181231.xsd#BusinessAcquisitionsDetailsScheduleOfFiniteLivedIntangibleAssetsAcquired" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BusinessAcquisitionsDetailsScheduleOfPurchasePriceAllocation" xlink:href="tree-20181231.xsd#BusinessAcquisitionsDetailsScheduleOfPurchasePriceAllocation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/BusinessAcquisitionsTables" xlink:href="tree-20181231.xsd#BusinessAcquisitionsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CashAndRestrictedCashDetails" xlink:href="tree-20181231.xsd#CashAndRestrictedCashDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CashAndRestrictedCashNote" xlink:href="tree-20181231.xsd#CashAndRestrictedCashNote" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CashAndRestrictedCashTables" xlink:href="tree-20181231.xsd#CashAndRestrictedCashTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/Commitments" xlink:href="tree-20181231.xsd#Commitments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CommitmentsDetailsBonds" xlink:href="tree-20181231.xsd#CommitmentsDetailsBonds" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CommitmentsDetailsOperatingLeases" xlink:href="tree-20181231.xsd#CommitmentsDetailsOperatingLeases" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CommitmentsOtherDetails" xlink:href="tree-20181231.xsd#CommitmentsOtherDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/CommitmentsTables" xlink:href="tree-20181231.xsd#CommitmentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConsolidatedBalanceSheets" xlink:href="tree-20181231.xsd#ConsolidatedBalanceSheets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:href="tree-20181231.xsd#ConsolidatedBalanceSheetsParenthetical" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConsolidatedStatementsOfCashFlows" xlink:href="tree-20181231.xsd#ConsolidatedStatementsOfCashFlows" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncome" xlink:href="tree-20181231.xsd#ConsolidatedStatementsOfOperationsAndComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConsolidatedStatementsOfShareholdersEquity" xlink:href="tree-20181231.xsd#ConsolidatedStatementsOfShareholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/Contingencies" xlink:href="tree-20181231.xsd#Contingencies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ContingenciesDetails" xlink:href="tree-20181231.xsd#ContingenciesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConvertibleDebtDetails" xlink:href="tree-20181231.xsd#ConvertibleDebtDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConvertibleDebtTables" xlink:href="tree-20181231.xsd#ConvertibleDebtTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ConvertibleNoteHedgeAndWarrantsDetails" xlink:href="tree-20181231.xsd#ConvertibleNoteHedgeAndWarrantsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DebtDebt" xlink:href="tree-20181231.xsd#DebtDebt" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DiscontinuedOperations" xlink:href="tree-20181231.xsd#DiscontinuedOperations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DiscontinuedOperationsDetailsDisposalGroups" xlink:href="tree-20181231.xsd#DiscontinuedOperationsDetailsDisposalGroups" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DiscontinuedOperationsDetailsLendingtreeLoans" xlink:href="tree-20181231.xsd#DiscontinuedOperationsDetailsLendingtreeLoans" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DiscontinuedOperationsDetailsLoanLossObligations" xlink:href="tree-20181231.xsd#DiscontinuedOperationsDetailsLoanLossObligations" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DiscontinuedOperationsTables" xlink:href="tree-20181231.xsd#DiscontinuedOperationsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/DocumentAndEntityInformation" xlink:href="tree-20181231.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/FairValueMeasurement" xlink:href="tree-20181231.xsd#FairValueMeasurement" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/FairValueMeasurementDetails" xlink:href="tree-20181231.xsd#FairValueMeasurementDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/FairValueMeasurementTables" xlink:href="tree-20181231.xsd#FairValueMeasurementTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/GoodwillAndIntangibleAssets" xlink:href="tree-20181231.xsd#GoodwillAndIntangibleAssets" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/GoodwillAndIntangibleAssetsDetails5YrDefiniteLivedIntangiblesAmortization" xlink:href="tree-20181231.xsd#GoodwillAndIntangibleAssetsDetails5YrDefiniteLivedIntangiblesAmortization" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/GoodwillAndIntangibleAssetsDetailsBalanceSheet" xlink:href="tree-20181231.xsd#GoodwillAndIntangibleAssetsDetailsBalanceSheet" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/GoodwillAndIntangibleAssetsDetailsDefiniteLivedIntangibles" xlink:href="tree-20181231.xsd#GoodwillAndIntangibleAssetsDetailsDefiniteLivedIntangibles" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/GoodwillAndIntangibleAssetsTables" xlink:href="tree-20181231.xsd#GoodwillAndIntangibleAssetsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxes" xlink:href="tree-20181231.xsd#IncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesDetailsDeferredIncomeTaxesBsPresentation" xlink:href="tree-20181231.xsd#IncomeTaxesDetailsDeferredIncomeTaxesBsPresentation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesDetailsDeferredIncomeTaxesComponents" xlink:href="tree-20181231.xsd#IncomeTaxesDetailsDeferredIncomeTaxesComponents" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesDetailsIncomeTaxProvisionComponents" xlink:href="tree-20181231.xsd#IncomeTaxesDetailsIncomeTaxProvisionComponents" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesDetailsIncomeTaxReconciliationWhenApplyingStatutoryFederalTaxRate" xlink:href="tree-20181231.xsd#IncomeTaxesDetailsIncomeTaxReconciliationWhenApplyingStatutoryFederalTaxRate" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesDetailsUnrecognizedTaxBenefits" xlink:href="tree-20181231.xsd#IncomeTaxesDetailsUnrecognizedTaxBenefits" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesDetailsValuationAllowance" xlink:href="tree-20181231.xsd#IncomeTaxesDetailsValuationAllowance" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/IncomeTaxesTables" xlink:href="tree-20181231.xsd#IncomeTaxesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/Organization" xlink:href="tree-20181231.xsd#Organization" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/PropertyAndEquipment" xlink:href="tree-20181231.xsd#PropertyAndEquipment" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/PropertyAndEquipmentDetails" xlink:href="tree-20181231.xsd#PropertyAndEquipmentDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentNetDetails" xlink:href="tree-20181231.xsd#PropertyAndEquipmentScheduleOfPropertyAndEquipmentNetDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/PropertyAndEquipmentTables" xlink:href="tree-20181231.xsd#PropertyAndEquipmentTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/QuarterlyFinancialInformation" xlink:href="tree-20181231.xsd#QuarterlyFinancialInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/QuarterlyFinancialInformationDetails" xlink:href="tree-20181231.xsd#QuarterlyFinancialInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/QuarterlyFinancialInformationTables" xlink:href="tree-20181231.xsd#QuarterlyFinancialInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/RelatedPartyTransactions" xlink:href="tree-20181231.xsd#RelatedPartyTransactions" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/RelatedPartyTransactionsDetails" xlink:href="tree-20181231.xsd#RelatedPartyTransactionsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/Revenue" xlink:href="tree-20181231.xsd#Revenue" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/RevenueRevenueDetails" xlink:href="tree-20181231.xsd#RevenueRevenueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/RevenueScheduleOfRevenueTables" xlink:href="tree-20181231.xsd#RevenueScheduleOfRevenueTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/RevolvingCreditFacilityDetails" xlink:href="tree-20181231.xsd#RevolvingCreditFacilityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ScheduleIiValuationAndQualifyingAccounts" xlink:href="tree-20181231.xsd#ScheduleIiValuationAndQualifyingAccounts" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" xlink:href="tree-20181231.xsd#ScheduleIiValuationAndQualifyingAccountsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SegmentInformation" xlink:href="tree-20181231.xsd#SegmentInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SegmentInformationDetails" xlink:href="tree-20181231.xsd#SegmentInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SegmentInformationTables" xlink:href="tree-20181231.xsd#SegmentInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ShareholdersEquity" xlink:href="tree-20181231.xsd#ShareholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ShareholdersEquityDetails" xlink:href="tree-20181231.xsd#ShareholdersEquityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/ShareholdersEquityTables" xlink:href="tree-20181231.xsd#ShareholdersEquityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPolicies" xlink:href="tree-20181231.xsd#SignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesDetailsConcentrationRisk" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesDetailsConcentrationRisk" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesDetailsPpeAdvertising" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesDetailsPpeAdvertising" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesDetailsRevArSeg" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesDetailsRevArSeg" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesDetailsTaxes" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesDetailsTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesPolicies" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesSignificantAccountingPoliciesDetailsAsc606Details" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesSignificantAccountingPoliciesDetailsAsc606Details" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SignificantAccountingPoliciesTables" xlink:href="tree-20181231.xsd#SignificantAccountingPoliciesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/StockBasedCompensation" xlink:href="tree-20181231.xsd#StockBasedCompensation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/StockBasedCompensationDetailsCeoAwards" xlink:href="tree-20181231.xsd#StockBasedCompensationDetailsCeoAwards" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/StockBasedCompensationDetailsPlanInformationAndPlImpact" xlink:href="tree-20181231.xsd#StockBasedCompensationDetailsPlanInformationAndPlImpact" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/StockBasedCompensationDetailsRsuAndRsaRollforwards" xlink:href="tree-20181231.xsd#StockBasedCompensationDetailsRsuAndRsaRollforwards" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/StockBasedCompensationDetailsStockOptionsRollforward" xlink:href="tree-20181231.xsd#StockBasedCompensationDetailsStockOptionsRollforward" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/StockBasedCompensationTables" xlink:href="tree-20181231.xsd#StockBasedCompensationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SubsequentEvent" xlink:href="tree-20181231.xsd#SubsequentEvent" xlink:type="simple" />
  <link:roleRef roleURI="http://www.tree.com/role/SubsequentEventDetails" xlink:href="tree-20181231.xsd#SubsequentEventDetails" xlink:type="simple" />
  <link:calculationLink xlink:role="http://www.tree.com/role/AccruedExpensesAndOtherCurrentLiabilities" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/AccruedExpensesAndOtherCurrentLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedAdvertisingCurrent" xlink:label="loc_us-gaap_AccruedAdvertisingCurrent_fc8e201b-8461-a0e8-117f-33a3627643ff" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:to="loc_us-gaap_AccruedAdvertisingCurrent_fc8e201b-8461-a0e8-117f-33a3627643ff" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_cf9ed09f-3dd1-4a4b-d3fc-3b0db18c1b40" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_cf9ed09f-3dd1-4a4b-d3fc-3b0db18c1b40" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedProfessionalFeesCurrent" xlink:label="loc_us-gaap_AccruedProfessionalFeesCurrent_98d31a39-575d-6ddd-42a2-18a0e94f1b32" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:to="loc_us-gaap_AccruedProfessionalFeesCurrent_98d31a39-575d-6ddd-42a2-18a0e94f1b32" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CustomerDepositsCurrent" xlink:label="loc_us-gaap_CustomerDepositsCurrent_ce476672-55cd-838d-bb2a-a93841526e10" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:to="loc_us-gaap_CustomerDepositsCurrent_ce476672-55cd-838d-bb2a-a93841526e10" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_CharitableContributionAccrualCurrent" xlink:label="loc_tree_CharitableContributionAccrualCurrent_FE45BFAEDE0E07892F940818A13568B7" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:to="loc_tree_CharitableContributionAccrualCurrent_FE45BFAEDE0E07892F940818A13568B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesCurrent" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_b4e6cca3-6c62-3e0a-6782-510b974f1199" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_b4e6cca3-6c62-3e0a-6782-510b974f1199" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/AccruedExpensesAndOtherCurrentLiabilitiesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/AssetsHeldForSale" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/AssetsHeldForSaleAssetsHeldForSaleScheduleForAssetAcquisitionDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/AssetsHeldForSaleAssetsHeldForSaleScheduleForAssetsHeldForSaleDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/AssetsHeldForSaleAssetsHeldForSaleScheduleForFutureRentalIncomeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_32f92fb2-74fb-064e-54e9-78d4a13eb8ae" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent_32f92fb2-74fb-064e-54e9-78d4a13eb8ae" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_0bdca246-56c9-0ba5-9bf8-4c5d01298d83" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears_0bdca246-56c9-0ba5-9bf8-4c5d01298d83" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_f5fda760-b2cb-e695-614e-76198956601e" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears_f5fda760-b2cb-e695-614e-76198956601e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_0c437a55-b8c1-374d-2209-11e8fc1ebef0" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears_0c437a55-b8c1-374d-2209-11e8fc1ebef0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_5e342cfe-c4d8-a522-ec58-428bc0fff804" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears_5e342cfe-c4d8-a522-ec58-428bc0fff804" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_3f3a5085-6821-74ab-c9f5-7c6a019c6ca9" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable_10169f97-57e1-8b74-8de0-846d2a224fed" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter_3f3a5085-6821-74ab-c9f5-7c6a019c6ca9" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/AssetsHeldForSaleTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BenefitPlans" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BenefitPlansDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BusinessAcquisitions" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BusinessAcquisitionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BusinessAcquisitionsDetailsProFormaInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BusinessAcquisitionsDetailsScheduleOfFiniteLivedIntangibleAssetsAcquired" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BusinessAcquisitionsDetailsScheduleOfPurchasePriceAllocation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/BusinessAcquisitionsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/CashAndRestrictedCashDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_b0a3a0d3-8732-f4e7-3bda-ee235d574c3b" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_07da1db4-2708-4446-4250-1fdd5956185e" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_b0a3a0d3-8732-f4e7-3bda-ee235d574c3b" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_07da1db4-2708-4446-4250-1fdd5956185e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_d69779e7-80bd-4b93-0bb0-641eb2f586cc" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_b0a3a0d3-8732-f4e7-3bda-ee235d574c3b" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_d69779e7-80bd-4b93-0bb0-641eb2f586cc" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/CashAndRestrictedCashNote" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/CashAndRestrictedCashTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/Commitments" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/CommitmentsDetailsBonds" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GuaranteeObligationsMaximumExposure" xlink:label="loc_us-gaap_GuaranteeObligationsMaximumExposure_c5f466ef-fe48-f179-ff52-549bd24caccf" xlink:type="locator" />
    <link:loc xlink:href="tree-20181231.xsd#tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractsWithinOneYear" xlink:label="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractsWithinOneYear_e89b39a9-ee64-7893-7948-80116d669134" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_c5f466ef-fe48-f179-ff52-549bd24caccf" xlink:to="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractsWithinOneYear_e89b39a9-ee64-7893-7948-80116d669134" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractsDueWithinSecondAndThirdYear" xlink:label="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractsDueWithinSecondAndThirdYear_dc8cbcfa-ee00-7ed5-82d3-80116c6da4ec" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_c5f466ef-fe48-f179-ff52-549bd24caccf" xlink:to="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractsDueWithinSecondAndThirdYear_dc8cbcfa-ee00-7ed5-82d3-80116c6da4ec" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractDueWithinThreeAndFifthYear" xlink:label="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractDueWithinThreeAndFifthYear_5d09f104-34bd-dc17-a37d-80116cc900fe" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_c5f466ef-fe48-f179-ff52-549bd24caccf" xlink:to="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractDueWithinThreeAndFifthYear_5d09f104-34bd-dc17-a37d-80116cc900fe" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractDueAfterFifthYear" xlink:label="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractDueAfterFifthYear_ea53d7c2-2d66-e464-da69-80116d7710d6" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_GuaranteeObligationsMaximumExposure_c5f466ef-fe48-f179-ff52-549bd24caccf" xlink:to="loc_tree_CommitmentExpirationRelatedToPerformanceAndCompletionOfContractDueAfterFifthYear_ea53d7c2-2d66-e464-da69-80116d7710d6" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/CommitmentsDetailsOperatingLeases" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_80AD2E556AED55E9883A9C2731A55CAE" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_8E2718858FD85CE4BBC6806367659087" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_80AD2E556AED55E9883A9C2731A55CAE" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent_8E2718858FD85CE4BBC6806367659087" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_4BD58098326C51FEB9F7E0E7887ED84A" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_80AD2E556AED55E9883A9C2731A55CAE" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears_4BD58098326C51FEB9F7E0E7887ED84A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_91291459C2AA5C93A1D3ADDAED904CDF" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_80AD2E556AED55E9883A9C2731A55CAE" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears_91291459C2AA5C93A1D3ADDAED904CDF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_7E6533C205865AF4B772F4606A9606DF" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_80AD2E556AED55E9883A9C2731A55CAE" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears_7E6533C205865AF4B772F4606A9606DF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears" xlink:label="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_C7C8C22D675B5212941F470A6361757E" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDue_80AD2E556AED55E9883A9C2731A55CAE" xlink:to="loc_us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears_C7C8C22D675B5212941F470A6361757E" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/CommitmentsOtherDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/CommitmentsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_07da1db4-2708-4446-4250-1fdd5956185e" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_07da1db4-2708-4446-4250-1fdd5956185e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_d69779e7-80bd-4b93-0bb0-641eb2f586cc" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_d69779e7-80bd-4b93-0bb0-641eb2f586cc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_dd7775cd-f4ab-5607-9b31-1ee98f605818" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_dd7775cd-f4ab-5607-9b31-1ee98f605818" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_2294e6a2-7bab-43ed-d02c-bdf73b8fa561" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_2294e6a2-7bab-43ed-d02c-bdf73b8fa561" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent" xlink:label="loc_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_83c118c3-6a97-feef-60f1-2b8add52b439" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:to="loc_us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_83c118c3-6a97-feef-60f1-2b8add52b439" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_7ccd4058-c821-b334-f2ba-45d4b5754cc1" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_8a47066b-3628-88d1-49db-ed09aecc7fc7" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_7ccd4058-c821-b334-f2ba-45d4b5754cc1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_1944a381-5c4e-ce3c-9111-13ccd1c639db" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_1944a381-5c4e-ce3c-9111-13ccd1c639db" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_93a64cae-271a-5e6b-8c83-5adf9f941142" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_Goodwill_93a64cae-271a-5e6b-8c83-5adf9f941142" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1fe06082-076b-052d-6e2e-930afe9d6b2d" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1fe06082-076b-052d-6e2e-930afe9d6b2d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent" xlink:label="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent_79b86299-04f6-ff11-6b66-c6ef1f697685" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent_79b86299-04f6-ff11-6b66-c6ef1f697685" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_9b27fab9-d497-627b-4cfb-6b585220b978" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_9b27fab9-d497-627b-4cfb-6b585220b978" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_63a47f61-ea22-3fe1-a926-4ed4e1977e98" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_c6057b1d-6685-8249-2051-6c57f3a16a9e" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAssetsNoncurrent_63a47f61-ea22-3fe1-a926-4ed4e1977e98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_159dcb00-b17e-17db-7098-be4159799459" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_159dcb00-b17e-17db-7098-be4159799459" xlink:to="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:to="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaap_LongTermDebtCurrent_f61bf97e-c3a5-ba72-7591-eba8e7bb6a44" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:to="loc_us-gaap_LongTermDebtCurrent_f61bf97e-c3a5-ba72-7591-eba8e7bb6a44" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccountsPayableTradeCurrent" xlink:label="loc_us-gaap_AccountsPayableTradeCurrent_f1cc95c4-d79a-fe83-8449-5be3c71b10a4" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:to="loc_us-gaap_AccountsPayableTradeCurrent_f1cc95c4-d79a-fe83-8449-5be3c71b10a4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent_3fe8f96b-142b-97b1-3b39-b8d22cd10e98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_0a95dc2d-3528-07ba-a167-5f0b147c1e5d" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityCurrent_0a95dc2d-3528-07ba-a167-5f0b147c1e5d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_05b9c2a4-6f85-5413-8af9-df620dfd1b1e" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_f5e246cf-e80f-d00b-c8ed-4796aa2df4b4" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_05b9c2a4-6f85-5413-8af9-df620dfd1b1e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LongTermDebtNoncurrent" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_822b66ff-44a1-e66b-5e0c-09356970a23d" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_822b66ff-44a1-e66b-5e0c-09356970a23d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_9fadad90-e782-6864-a2cc-36a3525bdca1" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityNoncurrent_9fadad90-e782-6864-a2cc-36a3525bdca1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_f234998c-5e05-09d0-d53e-5c44423c97c0" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_f234998c-5e05-09d0-d53e-5c44423c97c0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_314eb579-3ee1-408c-39f2-e62f2f37befc" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Liabilities_d8bb821f-d155-9d4e-1738-736b4bf4cb19" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_314eb579-3ee1-408c-39f2-e62f2f37befc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_159dcb00-b17e-17db-7098-be4159799459" xlink:to="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaap_PreferredStockValue_4fb6195d-d905-dac7-e5a0-79f324993f79" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:to="loc_us-gaap_PreferredStockValue_4fb6195d-d905-dac7-e5a0-79f324993f79" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockValueOutstanding" xlink:label="loc_us-gaap_CommonStockValueOutstanding_84f35893-355e-0c6f-c67d-2f363beeac9a" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:to="loc_us-gaap_CommonStockValueOutstanding_84f35893-355e-0c6f-c67d-2f363beeac9a" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AdditionalPaidInCapitalCommonStock" xlink:label="loc_us-gaap_AdditionalPaidInCapitalCommonStock_41895068-9590-2880-73df-521995865843" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:to="loc_us-gaap_AdditionalPaidInCapitalCommonStock_41895068-9590-2880-73df-521995865843" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_065cb284-7fca-cc9b-5752-2feaf74d0011" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_065cb284-7fca-cc9b-5752-2feaf74d0011" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="loc_us-gaap_TreasuryStockValue_40678492-c421-af67-b276-f663f9ff2f98" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:to="loc_us-gaap_TreasuryStockValue_40678492-c421-af67-b276-f663f9ff2f98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NoncontrollingInterestInVariableInterestEntity" xlink:label="loc_us-gaap_NoncontrollingInterestInVariableInterestEntity_e9c94951-d1dd-e0a4-6afc-334bd9b59d69" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_4b158f76-5f04-5e4d-ead3-d80e1f9943db" xlink:to="loc_us-gaap_NoncontrollingInterestInVariableInterestEntity_e9c94951-d1dd-e0a4-6afc-334bd9b59d69" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/ConsolidatedBalanceSheetsParenthetical" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesIssued" xlink:label="loc_us-gaap_CommonStockSharesIssued_57FEA5503E545811BCCB475830B771B1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CommonStockSharesOutstanding" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_65D4DB733A6E5F33B32FB8F76E3186AA" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CommonStockSharesIssued_57FEA5503E545811BCCB475830B771B1" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_65D4DB733A6E5F33B32FB8F76E3186AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_TreasuryStockShares" xlink:label="loc_us-gaap_TreasuryStockShares_13C242712346516BB426C952E66DA408" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CommonStockSharesIssued_57FEA5503E545811BCCB475830B771B1" xlink:to="loc_us-gaap_TreasuryStockShares_13C242712346516BB426C952E66DA408" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/ConsolidatedStatementsOfCashFlows" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_25092478-5ed6-8062-67ab-930a3e97a921" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_4adbde80-36e3-b879-a631-f0caa0dbbe76" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_25092478-5ed6-8062-67ab-930a3e97a921" xlink:to="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_4adbde80-36e3-b879-a631-f0caa0dbbe76" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_4adbde80-36e3-b879-a631-f0caa0dbbe76" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5b3d4a64-864e-a67c-1d85-8163ad700c58" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_5b3d4a64-864e-a67c-1d85-8163ad700c58" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_ae796c5c-1c01-d654-6a3c-3b5dd2c89517" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_ae796c5c-1c01-d654-6a3c-3b5dd2c89517" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_37b0c31d-5d8b-0577-dfd9-aa56a79334e3" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_37b0c31d-5d8b-0577-dfd9-aa56a79334e3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherDepreciationAndAmortization" xlink:label="loc_us-gaap_OtherDepreciationAndAmortization_af035d49-0557-cd02-3338-ff26f027fd0d" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_OtherDepreciationAndAmortization_af035d49-0557-cd02-3338-ff26f027fd0d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaap_ShareBasedCompensation_e3eecf87-b290-4567-8a59-5b0a8e27c85b" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_ShareBasedCompensation_e3eecf87-b290-4567-8a59-5b0a8e27c85b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_f75d01b7-d271-b07d-c4a7-6ae60293303d" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_f75d01b7-d271-b07d-c4a7-6ae60293303d" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_23d33fb4-4c27-bc2e-1ec3-5bf906d2e523" xlink:type="locator" />
    <link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_23d33fb4-4c27-bc2e-1ec3-5bf906d2e523" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherNoncashExpense" xlink:label="loc_us-gaap_OtherNoncashExpense_3943ec30-15aa-3a14-5596-f901a0dae382" xlink:type="locator" />
    <link:calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_OtherNoncashExpense_3943ec30-15aa-3a14-5596-f901a0dae382" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_88999971-796e-a544-2b43-0669ab932f8e" xlink:type="locator" />
    <link:calculationArc order="10" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_88999971-796e-a544-2b43-0669ab932f8e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_ddc2df4d-b6ae-c427-9cbf-f1b49d927398" xlink:type="locator" />
    <link:calculationArc order="11" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_ddc2df4d-b6ae-c427-9cbf-f1b49d927398" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfDebtDiscountPremium" xlink:label="loc_us-gaap_AmortizationOfDebtDiscountPremium_6998acca-43aa-59af-b14d-5e2253d7d1df" xlink:type="locator" />
    <link:calculationArc order="12" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_AmortizationOfDebtDiscountPremium_6998acca-43aa-59af-b14d-5e2253d7d1df" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_dd4bfa5e-1979-c817-e8a9-371104c0d4f7" xlink:type="locator" />
    <link:calculationArc order="13" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_dd4bfa5e-1979-c817-e8a9-371104c0d4f7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_c998cbd2-a633-c2ec-1932-e3bfedecbc9f" xlink:type="locator" />
    <link:calculationArc order="14" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_c998cbd2-a633-c2ec-1932-e3bfedecbc9f" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_IncreaseDecreaseInAccountsPayableAndOtherCurrentLiabilities" xlink:label="loc_tree_IncreaseDecreaseInAccountsPayableAndOtherCurrentLiabilities_2d397dd6-0dab-43b2-0d53-3940553f85b6" xlink:type="locator" />
    <link:calculationArc order="15" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_tree_IncreaseDecreaseInAccountsPayableAndOtherCurrentLiabilities_2d397dd6-0dab-43b2-0d53-3940553f85b6" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_ContingentConsiderationPayment" xlink:label="loc_tree_ContingentConsiderationPayment_F549EE16F7E36183BC69BE6A1295E95D" xlink:type="locator" />
    <link:calculationArc order="16" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_tree_ContingentConsiderationPayment_F549EE16F7E36183BC69BE6A1295E95D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_5ec175c9-d44c-92d1-32b9-f1b35a4c0263" xlink:type="locator" />
    <link:calculationArc order="17" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesPayableNetOfIncomeTaxesReceivable_5ec175c9-d44c-92d1-32b9-f1b35a4c0263" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_962cfc51-230d-a221-126b-1d12af7a5921" xlink:type="locator" />
    <link:calculationArc order="18" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesContinuingOperations_9ead1b94-5c78-ce9f-379f-74649d16d2bc" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_962cfc51-230d-a221-126b-1d12af7a5921" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_4adbde80-36e3-b879-a631-f0caa0dbbe76" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_fcdc0031-632d-d703-c30b-13d96fda604e" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_fcdc0031-632d-d703-c30b-13d96fda604e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="loc_us-gaap_PaymentsToAcquireIntangibleAssets_3be9d1aa-8098-ddda-91ce-5e44ee6678ae" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:to="loc_us-gaap_PaymentsToAcquireIntangibleAssets_3be9d1aa-8098-ddda-91ce-5e44ee6678ae" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_9d35c912-5b2d-89f7-eeb3-812a0511db5e" xlink:type="locator" />
    <link:calculationArc order="3" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_9d35c912-5b2d-89f7-eeb3-812a0511db5e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_bc66fcc7-4638-7e93-2948-b833e774a337" xlink:type="locator" />
    <link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_bc66fcc7-4638-7e93-2948-b833e774a337" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherPaymentsToAcquireBusinesses" xlink:label="loc_us-gaap_OtherPaymentsToAcquireBusinesses_28f0012f-fb2e-8c6a-753b-d813148c0fda" xlink:type="locator" />
    <link:calculationArc order="5" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperations_2be04cf9-8ceb-0f9e-f8fc-88519ffff574" xlink:to="loc_us-gaap_OtherPaymentsToAcquireBusinesses_28f0012f-fb2e-8c6a-753b-d813148c0fda" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInContinuingOperations_4adbde80-36e3-b879-a631-f0caa0dbbe76" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_dbbd5d91-eb58-fa81-2753-d9ddf4ada4c1" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_dbbd5d91-eb58-fa81-2753-d9ddf4ada4c1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_6d6aeea7-a141-90a2-c93a-b8ffdb3a558e" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_PaymentForContingentConsiderationLiabilityFinancingActivities_6d6aeea7-a141-90a2-c93a-b8ffdb3a558e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_d2b20a48-8c61-8411-d4d7-d65c81eadffd" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_d2b20a48-8c61-8411-d4d7-d65c81eadffd" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsToMinorityShareholders" xlink:label="loc_us-gaap_PaymentsToMinorityShareholders_f5111bee-d5f6-1852-97c9-8d4d4881d906" xlink:type="locator" />
    <link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_PaymentsToMinorityShareholders_f5111bee-d5f6-1852-97c9-8d4d4881d906" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_0c01a3fb-cfe2-13ca-1d6f-ee99ad27e1f7" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_0c01a3fb-cfe2-13ca-1d6f-ee99ad27e1f7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForHedgeFinancingActivities" xlink:label="loc_us-gaap_PaymentsForHedgeFinancingActivities_c409609a-87df-0ac9-96cf-f40b3659f551" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_PaymentsForHedgeFinancingActivities_c409609a-87df-0ac9-96cf-f40b3659f551" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ProceedsFromIssuanceOfWarrants" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfWarrants_118ae6b5-9fe8-c7ce-2af6-b5e8c2dcb7dd" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfWarrants_118ae6b5-9fe8-c7ce-2af6-b5e8c2dcb7dd" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_Proceedsfromequityofferingfinancingactivities" xlink:label="loc_tree_Proceedsfromequityofferingfinancingactivities_df06c9d0-b527-f3ae-1bb6-39405515592e" xlink:type="locator" />
    <link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_tree_Proceedsfromequityofferingfinancingactivities_df06c9d0-b527-f3ae-1bb6-39405515592e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_f19a6911-0ca9-0f7f-0ae8-f18c6d766244" xlink:type="locator" />
    <link:calculationArc order="9" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_f19a6911-0ca9-0f7f-0ae8-f18c6d766244" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_8a1490c4-32d9-5132-1fe2-2675a45abdae" xlink:type="locator" />
    <link:calculationArc order="10" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperations_ef560d3a-690c-ef17-1fe6-55654352e2f7" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_8a1490c4-32d9-5132-1fe2-2675a45abdae" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetCashProvidedByUsedInDiscontinuedOperations" xlink:label="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_929f4456-a56e-9b42-7f02-a9e68ad1a7fb" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_25092478-5ed6-8062-67ab-930a3e97a921" xlink:to="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_929f4456-a56e-9b42-7f02-a9e68ad1a7fb" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:label="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_41d34a64-5135-57ad-661a-9f86a4fee4f7" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_929f4456-a56e-9b42-7f02-a9e68ad1a7fb" xlink:to="loc_us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_41d34a64-5135-57ad-661a-9f86a4fee4f7" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/ConsolidatedStatementsOfOperationsAndComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_499015ce-2160-aed2-85a3-080e8c4c6cdf" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_499015ce-2160-aed2-85a3-080e8c4c6cdf" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0eb47183-f513-314d-ceda-ee2412d9eee8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0eb47183-f513-314d-ceda-ee2412d9eee8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaap_OperatingIncomeLoss_9894e895-7695-402a-9f03-08d60b7373b8" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0eb47183-f513-314d-ceda-ee2412d9eee8" xlink:to="loc_us-gaap_OperatingIncomeLoss_9894e895-7695-402a-9f03-08d60b7373b8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_33f76b65-31cf-be04-0849-25af345446d5" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_9894e895-7695-402a-9f03-08d60b7373b8" xlink:to="loc_us-gaap_Revenues_33f76b65-31cf-be04-0849-25af345446d5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostsAndExpenses" xlink:label="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_9894e895-7695-402a-9f03-08d60b7373b8" xlink:to="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaap_CostOfRevenue_a2b142e3-b3f3-b7b6-6428-5812971ab980" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_CostOfRevenue_a2b142e3-b3f3-b7b6-6428-5812971ab980" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_SellingAndMarketingExpense" xlink:label="loc_us-gaap_SellingAndMarketingExpense_460c4e45-6b19-c446-6991-97e38cf5aa17" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_SellingAndMarketingExpense_460c4e45-6b19-c446-6991-97e38cf5aa17" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GeneralAndAdministrativeExpense" xlink:label="loc_us-gaap_GeneralAndAdministrativeExpense_87411e46-c979-a1ff-e8b3-f4f75d86b855" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_GeneralAndAdministrativeExpense_87411e46-c979-a1ff-e8b3-f4f75d86b855" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_25ae5ce2-b413-b975-9a84-c7503d2496cf" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_25ae5ce2-b413-b975-9a84-c7503d2496cf" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_37b0c31d-5d8b-0577-dfd9-aa56a79334e3" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_37b0c31d-5d8b-0577-dfd9-aa56a79334e3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_ae796c5c-1c01-d654-6a3c-3b5dd2c89517" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_ae796c5c-1c01-d654-6a3c-3b5dd2c89517" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_23d33fb4-4c27-bc2e-1ec3-5bf906d2e523" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_23d33fb4-4c27-bc2e-1ec3-5bf906d2e523" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_78594f6e-0c1a-d6f6-6a22-c95b7bf56846" xlink:type="locator" />
    <link:calculationArc order="8" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_RestructuringCharges_78594f6e-0c1a-d6f6-6a22-c95b7bf56846" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_LitigationSettlementExpense" xlink:label="loc_us-gaap_LitigationSettlementExpense_58ce9b83-14ec-becd-d9b4-8d51ba4f6656" xlink:type="locator" />
    <link:calculationArc order="9" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0d9ff7d0-e871-5bdf-adbd-21d7dbf57556" xlink:to="loc_us-gaap_LitigationSettlementExpense_58ce9b83-14ec-becd-d9b4-8d51ba4f6656" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_7c9599ab-2a77-022c-c720-63fecff6a62c" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0eb47183-f513-314d-ceda-ee2412d9eee8" xlink:to="loc_us-gaap_InterestExpense_7c9599ab-2a77-022c-c720-63fecff6a62c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_OtherIncome" xlink:label="loc_us-gaap_OtherIncome_67402d53-bb55-2723-1295-126624c5472c" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_0eb47183-f513-314d-ceda-ee2412d9eee8" xlink:to="loc_us-gaap_OtherIncome_67402d53-bb55-2723-1295-126624c5472c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_b9914cca-4860-d701-8b49-ae2910ad372f" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_499015ce-2160-aed2-85a3-080e8c4c6cdf" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_b9914cca-4860-d701-8b49-ae2910ad372f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3d9b4bd2-957e-ddb5-7841-6a572de70646" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3d9b4bd2-957e-ddb5-7841-6a572de70646" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_29cb4575-1df0-23a0-aea0-70de299da05c" xlink:type="arc" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_3d9b4bd2-957e-ddb5-7841-6a572de70646" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_b9914cca-4860-d701-8b49-ae2910ad372f" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/ConsolidatedStatementsOfShareholdersEquity" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/Contingencies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ContingenciesDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ConvertibleDebtDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ConvertibleDebtTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ConvertibleNoteHedgeAndWarrantsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/DebtDebt" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/DiscontinuedOperations" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/DiscontinuedOperationsDetailsDisposalGroups" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_b9914cca-4860-d701-8b49-ae2910ad372f" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_32c54ca2-f88f-2005-cf94-b5bd005ce559" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_b9914cca-4860-d701-8b49-ae2910ad372f" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_32c54ca2-f88f-2005-cf94-b5bd005ce559" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:label="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_64dfb8a3-e793-00fc-3cb3-ad8751b1d684" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_b9914cca-4860-d701-8b49-ae2910ad372f" xlink:to="loc_us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_64dfb8a3-e793-00fc-3cb3-ad8751b1d684" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/DiscontinuedOperationsDetailsLendingtreeLoans" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/DiscontinuedOperationsDetailsLoanLossObligations" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/DiscontinuedOperationsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/FairValueMeasurement" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/FairValueMeasurementDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/FairValueMeasurementTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/GoodwillAndIntangibleAssets" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/GoodwillAndIntangibleAssetsDetails5YrDefiniteLivedIntangiblesAmortization" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_c918d4cb-4462-72da-1198-39107cb9581b" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_c918d4cb-4462-72da-1198-39107cb9581b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_e44a1606-1eda-278a-1c39-e2fcbf96f248" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_e44a1606-1eda-278a-1c39-e2fcbf96f248" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_6a8745e2-e4b9-1a92-2a4b-72abaf326824" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_6a8745e2-e4b9-1a92-2a4b-72abaf326824" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_ceebb9d8-94b3-173f-0af1-6bad40ca326c" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_ceebb9d8-94b3-173f-0af1-6bad40ca326c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_b5e743d1-f009-54c0-57f0-4a30eb0e9bab" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_b5e743d1-f009-54c0-57f0-4a30eb0e9bab" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_f98b1772-f2e7-e86d-8181-c87649b7a914" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_f98b1772-f2e7-e86d-8181-c87649b7a914" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/GoodwillAndIntangibleAssetsDetailsBalanceSheet" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_93a64cae-271a-5e6b-8c83-5adf9f941142" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillGross" xlink:label="loc_us-gaap_GoodwillGross_f8468382-b91b-4f7a-57af-96a105896e89" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Goodwill_93a64cae-271a-5e6b-8c83-5adf9f941142" xlink:to="loc_us-gaap_GoodwillGross_f8468382-b91b-4f7a-57af-96a105896e89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_e0e68795-51b1-5a3b-8be1-d04779347384" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Goodwill_93a64cae-271a-5e6b-8c83-5adf9f941142" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_e0e68795-51b1-5a3b-8be1-d04779347384" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1fe06082-076b-052d-6e2e-930afe9d6b2d" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_76e8d839-867c-df13-a643-4da04e725367" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1fe06082-076b-052d-6e2e-930afe9d6b2d" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_76e8d839-867c-df13-a643-4da04e725367" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_1fe06082-076b-052d-6e2e-930afe9d6b2d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/GoodwillAndIntangibleAssetsDetailsDefiniteLivedIntangibles" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_5d62e128-f1a1-954f-82e2-1936cb67d793" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_5d62e128-f1a1-954f-82e2-1936cb67d793" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c3ed8a56-abe0-6418-c541-e6b647d6318a" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_49187b45-82fd-7060-b114-79ff249a4331" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_c3ed8a56-abe0-6418-c541-e6b647d6318a" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/GoodwillAndIntangibleAssetsTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesDetailsDeferredIncomeTaxesBsPresentation" xlink:type="extended">
    <link:loc xlink:href="tree-20181231.xsd#tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance" xlink:label="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaap_DeferredTaxAssetsNet_d74724c2-178d-7f3f-8e86-5f5ba690672c" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:to="loc_us-gaap_DeferredTaxAssetsNet_d74724c2-178d-7f3f-8e86-5f5ba690672c" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetParentsBasisInDiscontinuedOperation" xlink:label="loc_us-gaap_DeferredTaxAssetParentsBasisInDiscontinuedOperation_475002ae-1cbe-2066-0041-7d9eba71f260" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:to="loc_us-gaap_DeferredTaxAssetParentsBasisInDiscontinuedOperation_475002ae-1cbe-2066-0041-7d9eba71f260" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesNoncurrent" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_314eb579-3ee1-408c-39f2-e62f2f37befc" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesNoncurrent_314eb579-3ee1-408c-39f2-e62f2f37befc" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesDetailsDeferredIncomeTaxesComponents" xlink:type="extended">
    <link:loc xlink:href="tree-20181231.xsd#tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance" xlink:label="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:type="locator" />
    <link:loc xlink:href="tree-20181231.xsd#tree_GrossDeferredTaxAssetsNetofValuationAllowance" xlink:label="loc_tree_GrossDeferredTaxAssetsNetofValuationAllowance_7d2f9e64-9e39-d250-a0f9-80116c7a876e" xlink:type="locator" />
    <link:calculationArc order="1" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:to="loc_tree_GrossDeferredTaxAssetsNetofValuationAllowance_7d2f9e64-9e39-d250-a0f9-80116c7a876e" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_GrossDeferredTaxAssetsNetofValuationAllowance_7d2f9e64-9e39-d250-a0f9-80116c7a876e" xlink:to="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_21d3fdc5-0c57-3147-2d98-67c225186166" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_21d3fdc5-0c57-3147-2d98-67c225186166" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_3541201a-a025-b00d-aec1-2cb167bdef44" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:to="loc_us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_3541201a-a025-b00d-aec1-2cb167bdef44" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_f7e9e6da-5d57-5f97-5d33-52f319506ef0" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost_f7e9e6da-5d57-5f97-5d33-52f319506ef0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies" xlink:label="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies_dcddff46-8545-c874-e9cd-dad411167452" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:to="loc_us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsContingencies_dcddff46-8545-c874-e9cd-dad411167452" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaap_DeferredTaxAssetsOther_91623f44-5f42-408a-f7b7-7a4698afab83" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:to="loc_us-gaap_DeferredTaxAssetsOther_91623f44-5f42-408a-f7b7-7a4698afab83" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_DeferredTaxAssetInterestLimitation" xlink:label="loc_tree_DeferredTaxAssetInterestLimitation_129B7F0B5512E67E6B48163E2A6F7F89" xlink:type="locator" />
    <link:calculationArc order="6" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredTaxAssetsGross_40f9cbe3-f1cd-d4d3-e7be-f62e64714b00" xlink:to="loc_tree_DeferredTaxAssetInterestLimitation_129B7F0B5512E67E6B48163E2A6F7F89" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_DeferredTaxAssetsValuationAllowance_46929883-d93f-69b0-5ded-4c800feeb57f" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_GrossDeferredTaxAssetsNetofValuationAllowance_7d2f9e64-9e39-d250-a0f9-80116c7a876e" xlink:to="loc_us-gaap_DeferredTaxAssetsValuationAllowance_46929883-d93f-69b0-5ded-4c800feeb57f" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilities_bbf9fd06-b461-3f65-8882-6e322d99a60b" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_tree_AggregateDeferredTaxLiabilitiesNetOfAssetsAndNetOfValuationAllowance_5073a4f2-0ba3-6795-99ba-80116c327020" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilities_bbf9fd06-b461-3f65-8882-6e322d99a60b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_d1de4f5a-e70f-c355-7179-89a9064c7b88" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_bbf9fd06-b461-3f65-8882-6e322d99a60b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets_d1de4f5a-e70f-c355-7179-89a9064c7b88" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredTaxLiabilitiesOther" xlink:label="loc_us-gaap_DeferredTaxLiabilitiesOther_40c7d4a7-f1a1-0c55-497e-f9a3bb09604c" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilities_bbf9fd06-b461-3f65-8882-6e322d99a60b" xlink:to="loc_us-gaap_DeferredTaxLiabilitiesOther_40c7d4a7-f1a1-0c55-497e-f9a3bb09604c" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesDetailsIncomeTaxProvisionComponents" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_611834B4EF5B5EE8AE9A7CDEE8657CB7" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_63DD4730F7AA5555A6BA5C7D7F8A5DE6" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_611834B4EF5B5EE8AE9A7CDEE8657CB7" xlink:to="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_63DD4730F7AA5555A6BA5C7D7F8A5DE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentFederalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentFederalTaxExpenseBenefit_5231A1E558AD5F90AFDD7EF2DE21CAE6" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_63DD4730F7AA5555A6BA5C7D7F8A5DE6" xlink:to="loc_us-gaap_CurrentFederalTaxExpenseBenefit_5231A1E558AD5F90AFDD7EF2DE21CAE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_9E6B0BB4E7345875A7E66B2CCA397FC1" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CurrentIncomeTaxExpenseBenefit_63DD4730F7AA5555A6BA5C7D7F8A5DE6" xlink:to="loc_us-gaap_CurrentStateAndLocalTaxExpenseBenefit_9E6B0BB4E7345875A7E66B2CCA397FC1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_ACB54953FCD9593D866D0DFFC95476E4" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_611834B4EF5B5EE8AE9A7CDEE8657CB7" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_ACB54953FCD9593D866D0DFFC95476E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredFederalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_F13F0E3C259E53F58995CEF467F0844A" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_ACB54953FCD9593D866D0DFFC95476E4" xlink:to="loc_us-gaap_DeferredFederalIncomeTaxExpenseBenefit_F13F0E3C259E53F58995CEF467F0844A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_D4F0160078FD58DA93B0499DB4229A91" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_ACB54953FCD9593D866D0DFFC95476E4" xlink:to="loc_us-gaap_DeferredStateAndLocalIncomeTaxExpenseBenefit_D4F0160078FD58DA93B0499DB4229A91" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesDetailsIncomeTaxReconciliationWhenApplyingStatutoryFederalTaxRate" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_16f0a3f7-750c-3f06-7b05-d8ae2aae120b" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_16f0a3f7-750c-3f06-7b05-d8ae2aae120b" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_bdbdc685-443d-bab4-6ccc-ce6a14aaa242" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_bdbdc685-443d-bab4-6ccc-ce6a14aaa242" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_ProvisionalestimateforremeasurementofdeferredtaxassetsandliabilitiesfromTaxCutsandJobsAct" xlink:label="loc_tree_ProvisionalestimateforremeasurementofdeferredtaxassetsandliabilitiesfromTaxCutsandJobsAct_9F1F77177658367AF7088585E9C4B4CB" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_tree_ProvisionalestimateforremeasurementofdeferredtaxassetsandliabilitiesfromTaxCutsandJobsAct_9F1F77177658367AF7088585E9C4B4CB" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_ProceedsAndExcessTaxBenefitFromSharebasedCompensationFederal" xlink:label="loc_tree_ProceedsAndExcessTaxBenefitFromSharebasedCompensationFederal_E8E4AC15EEBB5B710B0E9C3C86E82BD6" xlink:type="locator" />
    <link:calculationArc order="4" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_tree_ProceedsAndExcessTaxBenefitFromSharebasedCompensationFederal_E8E4AC15EEBB5B710B0E9C3C86E82BD6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_5a4be234-601b-ead6-df60-5106285cb5b9" xlink:type="locator" />
    <link:calculationArc order="5" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_5a4be234-601b-ead6-df60-5106285cb5b9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationTaxCreditsResearch" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCreditsResearch_dae4c6cc-5e4f-e8ac-846e-00b9cc00facc" xlink:type="locator" />
    <link:calculationArc order="6" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCreditsResearch_dae4c6cc-5e4f-e8ac-846e-00b9cc00facc" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_0b1d9c48-50e9-fd05-543d-8637e0170a2a" xlink:type="locator" />
    <link:calculationArc order="7" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit_78b7d85e-8366-fe6d-cb1f-faac5a041b79" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_0b1d9c48-50e9-fd05-543d-8637e0170a2a" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesDetailsUnrecognizedTaxBenefits" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesDetailsValuationAllowance" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/IncomeTaxesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/Organization" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/PropertyAndEquipment" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/PropertyAndEquipmentDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/PropertyAndEquipmentScheduleOfPropertyAndEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_83329DBC927359F8AE78FFC5D72F99E1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_71CED3A75441509B8758EF8BBE8ED676" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_83329DBC927359F8AE78FFC5D72F99E1" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_71CED3A75441509B8758EF8BBE8ED676" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_763650DC6F7D5EEF9C2EE33D7B7949B6" xlink:type="locator" />
    <link:calculationArc order="2" weight="-1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_83329DBC927359F8AE78FFC5D72F99E1" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_763650DC6F7D5EEF9C2EE33D7B7949B6" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/PropertyAndEquipmentTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/QuarterlyFinancialInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/QuarterlyFinancialInformationDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/QuarterlyFinancialInformationTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/RelatedPartyTransactions" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/RelatedPartyTransactionsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/Revenue" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/RevenueRevenueDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/RevenueScheduleOfRevenueTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/RevolvingCreditFacilityDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ScheduleIiValuationAndQualifyingAccounts" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ScheduleIiValuationAndQualifyingAccountsDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SegmentInformation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SegmentInformationDetails" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SegmentInformationTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ShareholdersEquity" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/ShareholdersEquityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_223fd9c8-68e8-e433-7c40-f98b238e79de" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_86e61cf2-b7b2-e230-65f1-5a2b152f3a30" xlink:type="locator" />
    <link:calculationArc order="1" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_223fd9c8-68e8-e433-7c40-f98b238e79de" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_86e61cf2-b7b2-e230-65f1-5a2b152f3a30" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_cee10fe8-a4bb-491c-22f6-69a723d6a718" xlink:type="locator" />
    <link:calculationArc order="2" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_223fd9c8-68e8-e433-7c40-f98b238e79de" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_cee10fe8-a4bb-491c-22f6-69a723d6a718" xlink:type="arc" />
    <link:loc xlink:href="tree-20181231.xsd#tree_IncrementalCommonSharesAttributableToRestrictedStockUnits" xlink:label="loc_tree_IncrementalCommonSharesAttributableToRestrictedStockUnits_887be68b-378b-9fb9-334c-394054951a00" xlink:type="locator" />
    <link:calculationArc order="3" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_223fd9c8-68e8-e433-7c40-f98b238e79de" xlink:to="loc_tree_IncrementalCommonSharesAttributableToRestrictedStockUnits_887be68b-378b-9fb9-334c-394054951a00" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2017/elts/us-gaap-2017-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_002e59bf-dd40-7260-a9ce-7bf122905487" xlink:type="locator" />
    <link:calculationArc order="4" weight="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_223fd9c8-68e8-e433-7c40-f98b238e79de" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants_002e59bf-dd40-7260-a9ce-7bf122905487" xlink:type="arc" />
  </link:calculationLink>
  <link:calculationLink xlink:role="http://www.tree.com/role/ShareholdersEquityTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPolicies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesDetailsConcentrationRisk" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesDetailsPpeAdvertising" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesDetailsRevArSeg" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesDetailsTaxes" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesPolicies" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesSignificantAccountingPoliciesDetailsAsc606Details" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SignificantAccountingPoliciesTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/StockBasedCompensation" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/StockBasedCompensationDetailsCeoAwards" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/StockBasedCompensationDetailsPlanInformationAndPlImpact" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/StockBasedCompensationDetailsRsuAndRsaRollforwards" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/StockBasedCompensationDetailsStockOptionsRollforward" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/StockBasedCompensationTables" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SubsequentEvent" xlink:type="extended" />
  <link:calculationLink xlink:role="http://www.tree.com/role/SubsequentEventDetails" xlink:type="extended" />
</link:linkbase>





