See exactly when you’ll be debt-free. This free student loan payoff calculator shows your payoff time and total interest — and how much faster extra payments get you there.
Results update automatically as you type. If the payment is too low to cover interest, the loan never pays off.
Use this free student loan payoff calculator to see how long it’ll take to clear your loan and how much interest you’ll pay. Add an extra monthly payment to see how much faster you could be debt-free.
A student loan payoff calculator tells you when your loan will be paid off based on your balance, interest rate and monthly payment. It shows your payoff time, total interest and total paid — and if you add extra payments, the time and interest you’d save.
Extra payments go straight to principal, which removes future interest. On a $30,000 loan at 6% paying $350 a month, payoff takes about 9.3 years with $9,271 in interest. Add just $100 a month and you finish nearly 31 months sooner and save about $2,688 in interest.
| Term | What it means |
|---|---|
| Principal | The amount you borrowed and still owe. |
| Avalanche method | Paying off the highest-interest loan first. |
| Snowball method | Paying off the smallest balance first for momentum. |
| Refinancing | Replacing a loan with a new one, ideally at a lower rate. |
| Capitalized interest | Unpaid interest added to your principal. |
It depends on your balance, rate and monthly payment. A $30,000 loan at 6% paid at $350 a month takes about 9.3 years. Paying more each month shortens that considerably.
Extra payments go straight to principal and cut future interest. On that same loan, adding $100 a month finishes nearly 31 months sooner and saves around $2,688 in interest.
The avalanche method pays off your highest-interest loan first to minimize total interest. The snowball method clears the smallest balance first for quick wins and motivation. Avalanche saves more money; snowball can be easier to stick with.
Refinancing can lower your rate and speed up payoff, but refinancing federal loans into a private loan gives up protections like income-driven repayment and forgiveness. Weigh those before refinancing.
If your payment only covers the monthly interest, none goes to principal and the loan never shrinks. You need to pay more than the interest charge each month to make progress.
Yes, this student loan payoff calculator is completely free, needs no sign-up, and gives instant results directly in your browser.