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Debt Payoff Calculator

Estimate how long a fixed monthly payment could take to clear one debt.

Enter your assumptions

Change a number. Your estimate updates automatically.

Currency changes formatting only; no exchange conversion.

Use your own assumptions. Review the method and exclusions below.

Your estimated future balance
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Projection over time

Assumes a fixed rate and unchanged payments. Fees and new borrowing are excluded. Actual lender schedules may differ.

View yearly breakdown
Year-end projections (rounded for display)

How this tool works

Each month, interest is added at APR / 12 and your payment is deducted. The final payment is limited to the amount owed. A payment that does not exceed monthly interest is flagged. The search window is 100 years.

Try an example

Try payments of 200 and 250 on a balance of 5,000 at an assumed 18% APR. Compare the payoff time and interest.

Questions & assumptions

Does this match every credit-card statement?

No. This model uses monthly interest and a fixed payment. Daily accrual, variable rates, minimum-payment formulas, fees, and new purchases can change actual results.

Can I export the calculation?

Yes. Download CSV includes inputs and projections. You can also print the results.

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