Free Debt Payoff Calculator

Any debt with a balance, an interest rate, and a payment you control — a personal loan, a medical bill on a payment plan, an older auto loan you're paying extra on — can be projected the same way: how many months until it's gone, and how much of what you pay is actually interest versus principal. This calculator runs that projection for any fixed-payment debt, not just credit cards, so you can plan a real payoff timeline instead of just watching a balance shrink month to month.

It's most useful when you're juggling more than one debt and deciding where extra money should go — comparing how much faster a higher payment clears a specific balance, or checking what a debt actually costs in total interest if you stick to the minimum required payment versus paying more aggressively.

Balances, interest rates, and how much debt you're carrying are exactly the kind of numbers people don't want stored anywhere — this calculator runs entirely in your browser, with nothing about your debt situation sent anywhere or logged.

Two common strategies guide which debt to attack first when you have several: the debt avalanche pays extra toward whichever balance has the highest interest rate first, which minimizes total interest paid mathematically. The debt snowball pays extra toward the smallest balance first regardless of rate, which clears individual debts faster and can be easier to stick with psychologically. Run each of your debts through this calculator individually to compare both approaches with your real numbers.