<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by CompSci Transform (tm) - http://www.compsciresources.com -->
<!-- Created: Fri Mar 06 02:16:20 UTC 2026 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ConsolidatedBalanceSheet" roleURI="http://www.oxfordsquarecapital.com/role/ConsolidatedBalanceSheet"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ConsolidatedIncomeStatement" roleURI="http://www.oxfordsquarecapital.com/role/ConsolidatedIncomeStatement"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ShareholdersEquityType1" roleURI="http://www.oxfordsquarecapital.com/role/ShareholdersEquityType1"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ConsolidatedCashFlow" roleURI="http://www.oxfordsquarecapital.com/role/ConsolidatedCashFlow"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ScheduleofCashandCashEquivalentsTable" roleURI="http://www.oxfordsquarecapital.com/role/ScheduleofCashandCashEquivalentsTable"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ScheduleofComponentsofInvestmentIncomeTable" roleURI="http://www.oxfordsquarecapital.com/role/ScheduleofComponentsofInvestmentIncomeTable"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ScheduleofFinancialHighlightsTable" roleURI="http://www.oxfordsquarecapital.com/role/ScheduleofFinancialHighlightsTable"/>
  <roleRef xlink:type="simple" xlink:href="oxsq-20251231.xsd#oxsq_r_ScheduleofComponentsofDistributableEarningsAccumulatedLossesTable" roleURI="http://www.oxfordsquarecapital.com/role/ScheduleofComponentsofDistributableEarningsAccumulatedLossesTable"/>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ConsolidatedBalanceSheet" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_Assets" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Assets"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentOwnedAtFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentOwnedAtFairValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_InvestmentOwnedAtFairValue" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashEquivalentsAtCarryingValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_CashEquivalentsAtCarryingValue" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Cash" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Cash"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Cash" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestReceivable"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_InterestReceivable" order="4" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Assets" xlink:to="us-gaap_OtherAssets" order="5" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Liabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Liabilities"/>
    <loc xlink:type="locator" xlink:label="us-gaap_UnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnsecuredDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_UnsecuredDebt" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SecuritiesLoaned" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuritiesLoaned"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_SecuritiesLoaned" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestPayableCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_InterestPayableCurrentAndNoncurrent" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncentiveFeePayable" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncentiveFeePayable"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_IncentiveFeePayable" order="4" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrentAndNoncurrent"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent" order="5" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingencies" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommitmentsAndContingencies"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_CommitmentsAndContingencies" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CommonStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_CommonStockValue" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit" order="4" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_Liabilities" order="1" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_StockholdersEquity" order="2" weight="1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ConsolidatedIncomeStatement" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="oxsq_TotalExpensesBeforeIncentiveFees" xlink:href="oxsq-20251231.xsd#oxsq_TotalExpensesBeforeIncentiveFees"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestExpenseOperating" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseOperating"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_InterestExpenseOperating" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ManagementFeeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ManagementFeeExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_ManagementFeeExpense" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProfessionalFees" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProfessionalFees"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_ProfessionalFees" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_LaborAndRelatedExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LaborAndRelatedExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_LaborAndRelatedExpense" order="4" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NoninterestExpenseDirectorsFees" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoninterestExpenseDirectorsFees"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_NoninterestExpenseDirectorsFees" order="5" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GeneralInsuranceExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralInsuranceExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_GeneralInsuranceExpense" order="6" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NoninterestExpenseTransferAgentAndCustodianFees" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NoninterestExpenseTransferAgentAndCustodianFees"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_NoninterestExpenseTransferAgentAndCustodianFees" order="7" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="us-gaap_GeneralAndAdministrativeExpense" order="8" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_ExciseTaxandSales" xlink:href="oxsq-20251231.xsd#oxsq_ExciseTaxandSales"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_TotalExpensesBeforeIncentiveFees" xlink:to="oxsq_ExciseTaxandSales" order="9" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_IncentiveFees" xlink:href="oxsq-20251231.xsd#oxsq_IncentiveFees"/>
    <loc xlink:type="locator" xlink:label="oxsq_NetInvestmentIncomeIncentiveFees" xlink:href="oxsq-20251231.xsd#oxsq_NetInvestmentIncomeIncentiveFees"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_IncentiveFees" xlink:to="oxsq_NetInvestmentIncomeIncentiveFees" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncentiveFeeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncentiveFeeExpense"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_IncentiveFees" xlink:to="us-gaap_IncentiveFeeExpense" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OperatingExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenses"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingExpenses" xlink:to="oxsq_TotalExpensesBeforeIncentiveFees" order="1" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OperatingExpenses" xlink:to="oxsq_IncentiveFees" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentIncomeNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeNet"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestIncomeOperatingPaidInCash" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeOperatingPaidInCash"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeNet" xlink:to="us-gaap_InterestIncomeOperatingPaidInCash" order="1" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeNet" xlink:to="us-gaap_OperatingExpenses" order="2" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_InvestmentIncomeNet" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_UnrealizedGainLossOnInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_UnrealizedGainLossOnInvestments" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt" order="3" weight="1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ShareholdersEquityType1" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentIncomeNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeNet"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_InvestmentIncomeNet" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_UnrealizedGainLossOnInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_UnrealizedGainLossOnInvestments" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyDividendDistribution" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDividendDistribution"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockholdersEquityPeriodIncreaseDecrease" xlink:to="us-gaap_InvestmentCompanyDividendDistribution" order="1" weight="-1"/>
    <loc xlink:type="locator" xlink:label="oxsq_NetIncreaseInNetAssetsFromCapitalShareTransactions" xlink:href="oxsq-20251231.xsd#oxsq_NetIncreaseInNetAssetsFromCapitalShareTransactions"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_NetIncreaseInNetAssetsFromCapitalShareTransactions" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_NetIncreaseInNetAssetsFromCapitalShareTransactions" xlink:to="us-gaap_StockIssuedDuringPeriodValueDividendReinvestmentPlan" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_IncreasedecreaseInNetAssetsTotal" xlink:href="oxsq-20251231.xsd#oxsq_IncreasedecreaseInNetAssetsTotal"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_IncreasedecreaseInNetAssetsTotal" xlink:to="us-gaap_NetIncomeLoss" order="1" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_IncreasedecreaseInNetAssetsTotal" xlink:to="us-gaap_StockholdersEquityPeriodIncreaseDecrease" order="2" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="oxsq_IncreasedecreaseInNetAssetsTotal" xlink:to="oxsq_NetIncreaseInNetAssetsFromCapitalShareTransactions" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease"/>
    <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_StockIssuedDuringPeriodSharesPeriodIncreaseDecrease" xlink:to="us-gaap_StockIssuedDuringPeriodSharesDividendReinvestmentPlan" order="2" weight="1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ConsolidatedCashFlow" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetIncomeLoss" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_RepaymentOfPrincipalSecuritiesInvestments" xlink:href="oxsq-20251231.xsd#oxsq_RepaymentOfPrincipalSecuritiesInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="oxsq_RepaymentOfPrincipalSecuritiesInvestments" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleOfShortTermInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromSaleOfShortTermInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_ProceedsFromSaleOfShortTermInvestments" order="4" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_ReductionsToCLOEquityCostValue" xlink:href="oxsq-20251231.xsd#oxsq_ReductionsToCLOEquityCostValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="oxsq_ReductionsToCLOEquityCostValue" order="5" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInInterestPayableNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInInterestPayableNet"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInInterestPayableNet" order="6" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccruedLiabilities" order="7" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" order="8" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestIncomeOperatingPaidInKind" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeOperatingPaidInKind"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_InterestIncomeOperatingPaidInKind" order="9" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsForPurchaseOfSecuritiesOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForPurchaseOfSecuritiesOperatingActivities"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_PaymentsForPurchaseOfSecuritiesOperatingActivities" order="10" weight="-1"/>
    <loc xlink:type="locator" xlink:label="oxsq_RealizedInvestmentGainLosses" xlink:href="oxsq-20251231.xsd#oxsq_RealizedInvestmentGainLosses"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="oxsq_RealizedInvestmentGainLosses" order="11" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_UnrealizedGainLossOnInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnInvestments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_UnrealizedGainLossOnInvestments" order="12" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInAccruedInterestReceivableNet" order="13" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherOperatingAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInOtherOperatingAssets"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_IncreaseDecreaseInOtherOperatingAssets" order="14" weight="-1"/>
    <loc xlink:type="locator" xlink:label="oxsq_IncreaseDecreaseInBaseFeeAndNetInvestmentIncomeIncentiveFeePayable" xlink:href="oxsq-20251231.xsd#oxsq_IncreaseDecreaseInBaseFeeAndNetInvestmentIncomeIncentiveFeePayable"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="oxsq_IncreaseDecreaseInBaseFeeAndNetInvestmentIncomeIncentiveFeePayable" order="15" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfUnsecuredDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromIssuanceOfUnsecuredDebt" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_ExtinguishmentOfDebt" xlink:href="oxsq-20251231.xsd#oxsq_ExtinguishmentOfDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="oxsq_ExtinguishmentOfDebt" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentsOfDividendsCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentsOfDividendsCommonStock" order="4" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_PaymentOfFinancingAndStockIssuanceCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentOfFinancingAndStockIssuanceCosts"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_PaymentOfFinancingAndStockIssuanceCosts" order="5" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_FinanceLeasePrincipalPayments" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_FinanceLeasePrincipalPayments" order="6" weight="-1"/>
    <loc xlink:type="locator" xlink:label="oxsq_UnderwritingFeesAndOfferingCostsForTheIssuanceOfCommonStock" xlink:href="oxsq-20251231.xsd#oxsq_UnderwritingFeesAndOfferingCostsForTheIssuanceOfCommonStock"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="oxsq_UnderwritingFeesAndOfferingCostsForTheIssuanceOfCommonStock" order="7" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_RepaymentsOfUnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfUnsecuredDebt"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_RepaymentsOfUnsecuredDebt" order="8" weight="-1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities" order="1" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="2" weight="1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ScheduleofCashandCashEquivalentsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <loc xlink:type="locator" xlink:label="us-gaap_Cash" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Cash"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_Cash" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_CashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashEquivalentsAtCarryingValue"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="us-gaap_CashEquivalentsAtCarryingValue" order="2" weight="1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ScheduleofComponentsofInvestmentIncomeTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_InterestIncomeExpenseNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestIncomeOther" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeOther"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseNet" xlink:to="us-gaap_InterestIncomeOther" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_InterestIncomePaidInKindInterestIncome" xlink:href="oxsq-20251231.xsd#oxsq_InterestIncomePaidInKindInterestIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseNet" xlink:to="oxsq_InterestIncomePaidInKindInterestIncome" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_OriginalIssueDiscountAndMarketDiscountIncome" xlink:href="oxsq-20251231.xsd#oxsq_OriginalIssueDiscountAndMarketDiscountIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseNet" xlink:to="oxsq_OriginalIssueDiscountAndMarketDiscountIncome" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_DiscountIncomeDerivedFromUnscheduledRemittancesAtPar" xlink:href="oxsq-20251231.xsd#oxsq_DiscountIncomeDerivedFromUnscheduledRemittancesAtPar"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InterestIncomeExpenseNet" xlink:to="oxsq_DiscountIncomeDerivedFromUnscheduledRemittancesAtPar" order="4" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_OtherIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherIncome"/>
    <loc xlink:type="locator" xlink:label="oxsq_FeeLetters" xlink:href="oxsq-20251231.xsd#oxsq_FeeLetters"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherIncome" xlink:to="oxsq_FeeLetters" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_AllOtherFeesIncome" xlink:href="oxsq-20251231.xsd#oxsq_AllOtherFeesIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_OtherIncome" xlink:to="oxsq_AllOtherFeesIncome" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentIncomeNonoperating" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentIncomeNonoperating"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeNonoperating" xlink:to="us-gaap_InterestIncomeExpenseNet" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InterestAndFeeIncomeLoansConsumerInstallmentAutomobilesMarineAndOtherVehicles" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestAndFeeIncomeLoansConsumerInstallmentAutomobilesMarineAndOtherVehicles"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeNonoperating" xlink:to="us-gaap_InterestAndFeeIncomeLoansConsumerInstallmentAutomobilesMarineAndOtherVehicles" order="2" weight="1"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentIncomeNonoperating" xlink:to="us-gaap_OtherIncome" order="3" weight="1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ScheduleofFinancialHighlightsTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:to="us-gaap_InvestmentCompanyInvestmentIncomeLossPerShare" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyInvestmentIncomeLossFromOperationsPerShare" xlink:to="us-gaap_InvestmentCompanyGainLossOnInvestmentPerShare" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDistributionToShareholdersPerShare"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistributionPerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyTaxReturnOfCapitalDistributionPerShare"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:to="us-gaap_InvestmentCompanyTaxReturnOfCapitalDistributionPerShare" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="oxsq_DistributionsPerShareFromNetInvestmentIncome" xlink:href="oxsq-20251231.xsd#oxsq_DistributionsPerShareFromNetInvestmentIncome"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:to="oxsq_DistributionsPerShareFromNetInvestmentIncome" order="2" weight="-1"/>
    <loc xlink:type="locator" xlink:label="oxsq_DistributionsBasedOnWeightedAverageShareImpactinShares" xlink:href="oxsq-20251231.xsd#oxsq_DistributionsBasedOnWeightedAverageShareImpactinShares"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_InvestmentCompanyDistributionToShareholdersPerShare" xlink:to="oxsq_DistributionsBasedOnWeightedAverageShareImpactinShares" order="3" weight="-1"/>
  </calculationLink>
  <calculationLink xlink:role="http://www.oxfordsquarecapital.com/role/ScheduleofComponentsofDistributableEarningsAccumulatedLossesTable" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedOrdinaryIncomeLoss" order="1" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedAppreciationDepreciation" order="2" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedTemporaryDifferenceOther" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedTemporaryDifferenceOther"/>
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedTemporaryDifferenceOther" order="3" weight="1"/>
    <loc xlink:type="locator" xlink:label="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward"/>
<!-- [WMV6][W/PkhaJ6mZxkAT6n31nZbAof72soswJPkulRcZbzRR3pHcTVFijWqm/tERDx/+sK4f/5gYUeUVNC1cRZh1h+cMNdlerCnC3AyVGRItjtIdrOhmp2u0Z6P16rmwe1ypeIGpt91BmHlRhTHV8mHd0KER4qRv2rBr4QBWUqKStzH5DLd+d9VkdUeq7524r4cAW4SUWUZhfCEfOIyN6DSBfixfIiJrLxDPTVheuZS4KvLShDAWhM77JhsEZRg2j1k1vC4/kioXSCN46ox2EOJtZMaEw2/Q0GCdDG0KvkMiR7k4tfBq2whmKNskTJFCdAkMsMcWlYUA+/YlwBnES71+37fKuIh1+zTrvSt8N9mh3MtHHoCqo+65E=] CSR-->
    <calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_InvestmentCompanyDistributableEarningsLossAccumulatedCapitalLossCarryforward" order="4" weight="-1"/>
  </calculationLink>
</linkbase>
