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Debt Payoff Calculator

Find out how many months it will take to pay off your debt. Enter current balance, interest rate, and monthly payment.

Debt Payoff Calculator

Credit card rates are often 15-25%.

Months to Pay Off

32

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How to use this calculator

  1. Enter your current debt balance.
  2. Enter the annual interest rate (APR).
  3. Enter your planned monthly payment.
  4. See the number of months to pay off.

How This Calculator Works

Enter your balance, APR, and monthly payment. The calculator iterates month by month: each month charges interest on the remaining balance, subtracts your payment, and tracks until the balance hits zero.

Formula Used

Months = −ln(1 − (balance × monthly_rate / payment)) / ln(1 + monthly_rate), where monthly_rate = APR / 12 / 100.

Example Calculation

$5,000 credit card at 18% APR with $200/month payments: about 32 months to pay off, with roughly $1,300 in total interest.

When to Use This Calculator

Use this calculator when planning to pay off credit card debt, personal loans, or any fixed-rate debt. Compare different payment amounts to see how extra payments reduce payoff time.

Frequently asked questions
  • If your monthly payment is less than the monthly interest charge, the debt will never be paid off. The calculator returns 0 in this case. Increase your payment.

Embed this calculator

Copy the code below to embed this calculator on your site.

<iframe src="https://smartcalculators.tools/embed/debt-payoff-calculator" title="Debt Payoff Calculator" width="100%" height="400" frameborder="0"></iframe>

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