Student Loan Payoff Calculator
See how extra payments cut your payoff time. Change the numbers and the result updates instantly.
How it works
Extra payments go straight to principal, which reduces the interest charged every following month. Even $50 or $100 a month can cut years from the payoff date. Enter your balance, rate, current payment and an extra amount to compare both paths.
Example
This calculator is for fixed repayment plans. Income-driven plans and forgiveness programs have different rules; check studentaid.gov.
Tips
- Change one input at a time to see what moves the result most.
- Use realistic rates. Check current averages before you decide.
- Results are estimates and do not replace advice from a licensed professional.
Frequently asked questions
Is this calculator free?
Yes. There is no sign-up and nothing is stored on our servers; the math runs in your browser.
How accurate is it?
It uses standard formulas, but real offers include fees, rate changes and taxes that can differ. Treat the result as an estimate.
Sources and method
Page last updated November 2026. See our editorial policy and disclaimer.