Debt Payoff Calculator
Plan a single-debt payoff from balance, rate, and monthly payment. See months to debt-free with a payoff timeline — free, local, no signup.
How to Use the Debt Payoff Calculator
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Frequently Asked Questions
Avalanche or snowball?
The tool handles one debt at a time, so there is no multi-debt ordering. As a rule avalanche (highest rate first) saves the most interest; snowball (smallest balance first) wins psychologically — run each debt through separately in that order.
How much do extra payments help?
Enormously early. There is no separate extra-payment field — raise the monthly payment figure instead and compare the months-to-payoff before and after.
Which debts first?
One debt per run here: enter balance, rate, and payment for each debt separately. Never skip minimums chasing optimizations.
Is debt data uploaded?
No — planning runs locally in your browser. Sensitive figures never leave your device.
How fast does the Credit Card preset clear?
$10,000 at 18% paying $500/month clears in 24 months (shown as 2 yr 0 mo). The tool simulates month-by-month up to a 600-month cap — and if your payment doesn’t cover the first month’s interest ($150 here), the result stays blank, which means raise the payment.
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Last updated October 2026