Debt snowball calculator
List your debts and the total you can pay each month. The snowball method pays minimums on everything and puts every extra dollar on the smallest balance first; when it's gone, its payment rolls to the next one.
| Debt | Balance | APR % | Minimum |
|---|
Take it offline — free spreadsheet
Download the Debt Snowball Quick Calculator (10 debts, Excel + Google Sheets, $0). Want the full year plan with Snowball vs Avalanche side by side, a month-by-month payment schedule and What-If tests? See the Debt-Free Planner 2027.
Download the free spreadsheet →Debt-Free Planner 2027 ($5)FAQ
How does the debt snowball work?
Pay the minimum on every debt, put all extra money on the smallest balance, then roll that payment into the next smallest once it is paid off.
How is interest calculated?
Monthly: balance × APR ÷ 12 is added each month before payments. Real lenders may compound daily, so your statements can differ slightly.
What if my budget is less than my minimums?
The calculator uses at least the sum of your minimums, since you must pay those anyway.
Free tool, runs entirely in your browser; nothing you type is sent anywhere. Results are estimates — check your own statements. Fee and tax rates can change; the date each rate was checked is shown on the page.