Debt Payoff Calculator
Calculate how long it will take to pay off debt and how much interest you may pay.
Debt Payoff Calculator
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—Result
Formula & How It Works
Months = -log(1 - r×P/M) ÷ log(1+r)P is balance, r is monthly interest rate, and M is monthly payment. If the payment is too low, the balance may never be paid off.
Use this calculator as a fast planning tool. Always confirm important financial, medical, construction, or recipe measurements with a qualified source before making final decisions.