Find out how long it will take to clear a debt and how much interest it will cost. Enter the current balance, the annual interest rate and the fixed amount you plan to pay each month, and the calculator works through the balance month by month to show the number of months until you are debt free, the payoff date and the total interest you will pay along the way. It also warns you if your chosen payment is too small to ever cover the monthly interest, which is the trap that keeps balances growing forever. Nudging the monthly payment up even a little often shortens the timeline dramatically, and you can test that here instantly. All calculations run locally in your browser.