Student Loan Calculator

Estimate student loan payments and repayment cost.

This tool runs in your browser. None of your data is saved or sold.

About This Calculator

This calculator works for both federal and private student loans. Enter the outstanding balance, current interest rate, and repayment term to see your monthly payment and total repayment cost. If you have multiple loans at different rates, run each one separately and add the monthly payments together for your full monthly obligation.

Estimates only — not financial, tax, legal, or investment advice. Verify important results with a qualified professional before making decisions.

PMT = P × r / (1 − (1 + r)^−N); total paid = PMT × N; total interest = total paid − P

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