Debt payoff calculator: snowball vs avalanche
List your debts, add whatever extra you can throw at them each month, and instantly compare the two proven payoff strategies — how fast each gets you debt-free, and how much interest each saves.
| Debt | Balance | APR % | Min/mo | |
|---|---|---|---|---|
Avalanche
Least interestHighest APR first · least interest
Snowball
Smallest balance first · fast wins
The nerd verdict: the Avalanche method saves you $769 in interest. Snowball clears your smallest debt first for a motivating quick win. Same budget either way — pick the one you'll stick with.
Pay minimums on everything, then attack one debt with every extra dollar. Avalanche (highest APR first) saves the most interest; Snowball (smallest balance first) gives faster wins. Same budget — pick the one you'll stick with.
Frequently asked questions
What's the difference between the snowball and avalanche methods?
Both pay the minimum on every debt, then throw all extra money at one target. The avalanche method targets the highest-interest debt first, which mathematically saves the most interest. The snowball method targets the smallest balance first, giving you a quick payoff win that keeps you motivated.
Which debt payoff method is better?
Avalanche saves the most money in interest. Snowball is often easier to stick with because you eliminate whole debts faster, which feels rewarding. The best method is the one you'll actually follow — the budget is identical either way.
Why won't my debt pay off in the calculator?
If the result shows 'Never,' your minimum payments plus extra barely cover the monthly interest, so the balance never meaningfully shrinks. Increasing the extra monthly payment (or the minimums) will produce a real payoff date.
Researching and writing about debt, loans, and personal finance since 2026.
“Debt Payoff Calculator: Snowball vs Avalanche — VaultNerd” — VaultNerd, https://www.vaultnerd.com/tools/debt-payoff-calculator, updated June 2026.
- Standard debt-amortization simulation (monthly interest accrual)