Debt Snowball & Payoff Calculator
Compare the debt snowball and avalanche methods side by side and see the interest each one costs.
Runs locally in your browser — your debt balances never leave this pageTry: Debt 1 balance=5000, Debt 1 min payment=150, Debt 1 APR %=22.9, Debt 2 balance=3000, Debt 2 min payment=80, Debt 2 APR %=18.9, Debt 3 balance=1200, Debt 3 min payment=40, Debt 3 APR %=12.5, Extra payment / month=100, One-time extra payment=0 → 41, $3,442, 37, $2,819, $0
How to use
Enter up to three debts with their balance, minimum payment and APR. Add any extra monthly or one-time payment. Press Calculate to see how many months each method takes and the total interest. Everything runs in your browser.
FAQ
Which method is better, snowball or avalanche?
The avalanche method always costs less interest because it attacks the highest APR first. The snowball method clears the smallest balance first, which gives early wins that help many people stay motivated. Math favors avalanche; behavior often favors snowball.