Debt Snowball & Avalanche Calculator
Plan your way out of debt: compare the snowball (smallest balance first) and avalanche (highest interest first) methods — payoff date, interest and order.
For information and education only — not financial advice. Results are estimates based on the numbers you enter; check important decisions with a qualified professional.
How to use
- 1List each debt on its own line: name, balance, APR and minimum payment (e.g. 'Visa 4500 22.9 120').
- 2Enter the extra amount you can pay each month on top of the minimums.
- 3Compare both methods and pick the one you'll stick with.
How it's calculated
Each month: interest is added (APR ÷ 12), every minimum is paid, and all extra money — including minimums freed by cleared debts — goes to the target debt. Snowball targets the smallest balance; avalanche the highest APR.
Frequently asked questions
Snowball or avalanche — which is better?
Avalanche always costs the least interest. Snowball gives quick wins by clearing small debts first, which helps many people stay motivated.
What happens when a debt is paid off?
Its minimum payment 'rolls over' into the next target debt, so your payoff speeds up over time.
Should I include my mortgage?
Usually not. These methods are for consumer debt like cards, personal and car loans. Mortgages are long-term and low-rate.