🎓 Student Loan Payoff Calculator
See how extra payments can save you thousands in interest.
Additional amount above minimum
How the Student Loan Payoff Calculator Works
Enter your current loan balance, interest rate, and minimum monthly payment to see your payoff date and total interest paid. Then add an extra monthly payment amount to see how much faster you can become debt-free and how much interest you save.
The Power of Extra Payments
Student loan interest compounds daily for most federal loans, which means the sooner you pay down principal, the less you pay in total. Adding even $50-$100 extra per month can make a dramatic difference. On a $35,000 loan at 5.5% interest, paying $100 extra per month typically saves $3,000-$5,000 in interest and cuts 2-4 years from your payoff timeline.
Payoff Strategies
If you have multiple student loans, focus extra payments on the highest-interest loan first (the avalanche method). Once that loan is paid off, roll that payment into the next highest-rate loan. This approach minimizes total interest paid. Alternatively, the snowball method (smallest balance first) provides psychological wins faster, which can help you stay motivated.
Income-Driven Repayment Plans
If your monthly payment feels unmanageable, federal income-driven repayment (IDR) plans like SAVE, PAYE, or IBR cap your payments at a percentage of your discretionary income. These plans can lower your required payment but extend your repayment period and increase total interest. Use this calculator to see the cost of minimum payments versus accelerated payoff.
For more resources, see our guide on student loan payoff strategies.