Student Loan Calculator
Estimate monthly payments, total interest, and payoff date for student loans. Models standard amortizing repayment.
Inputs
Standard federal term is 10 years; extended plans go to 25.
Monthly payment
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Total interest
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Total of payments
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Payoff date
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Interest as % of principal
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About Student Loan Calculator
Federal vs private
Federal student loans (Direct Loans) have fixed rates set annually by Congress, plus income-driven repayment options. Private loans vary widely — rates depend on credit score and co-signer.
Repayment plans
Standard: fixed payments over 10 years (calculator default). Graduated: starts low, increases. Extended: 25 years (lower monthly, much more interest). Income-driven: payment caps at percentage of income.
Refinancing tradeoffs
Refinancing federal loans into private loans gives you the new rate but loses access to income-driven repayment, forbearance, and forgiveness programs. Worth it only if you’re confident you won’t need those protections.