Debt Payoff Calculator (Avalanche vs Snowball)
Compare the debt avalanche (highest interest first), the debt snowball (smallest balance first) and minimum payments for up to four debts, using your balances, APRs and payments.
Free · runs in your browser · Checked 30 September 2026Debt payoff
Move the sliders or type your own numbers. Results are estimates that assume a constant rate and are not guaranteed.
🧠 How this is calculated
Every month interest accrues on each debt and the minimums are paid; any extra money goes to the target debt (highest APR for the avalanche method, smallest balance for the snowball method). When a debt is paid off its payment rolls into the next one.
Calculations run in your browser; nothing you enter is sent to us. Results are estimates that depend on the assumptions shown.
❓ FAQs
Which method is better?
The avalanche method usually saves the most interest. The snowball method can be easier to stick with because you clear small balances first. The calculator shows both with your numbers.
Do the results include new purchases?
No. It assumes you add no new debt while paying off.
Is this financial advice?
No. The calculator shows what happens under the numbers you enter. Rates, limits and tax rules change; confirm with the provider or a licensed professional.
Results are illustrations, not offers or advice. Investments can lose value; bank deposits are FDIC-insured up to $250,000 per depositor, per insured bank, per ownership category.