Pick a payoff timeline and see the monthly payment it takes.
A pay-off-sooner calculator finds the monthly payment required to clear a loan by a target date, so you can see what it takes to be debt-free on your own timeline.
Instead of accepting the lender's schedule, you pick when you want to be done and the calculator solves for the payment that gets you there, using the standard amortization formula. Shortening the payoff raises the monthly payment but cuts total interest, often substantially.
A shorter payoff means fewer months of interest on a faster-shrinking balance, so the total interest drops sharply even though the rate is unchanged. Confirm your lender applies the higher payment correctly and check for any prepayment penalty, then treat the larger payment like a fixed bill to stay on the accelerated schedule.
The calculator solves it from your balance, rate, and target term using the amortization formula, enter them above.
Yes, fewer months of interest on a faster-falling balance cuts total interest, even though the rate is the same.
Check that extra goes to principal and that there's no prepayment penalty before committing to a faster payoff.
See the exact formula and a worked example on our methodology page.