Snowball vs Avalanche Calculator: Compare Debt Payoff | NRP

Snowball vs. Avalanche Debt Payoff Calculator

Enter up to four debts and one extra monthly amount — see both payoff strategies compared side by side.

Last updated: September 3, 2026

Compare both strategies

Debt nameBalance ($)APR (%)Min payment ($)

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Key takeaways

  • Avalanche (highest APR first) always costs equal or less in interest; snowball (smallest balance first) gives faster early wins.
  • For many real debt mixes the dollar difference is small — the best method is the one you'll stick with.
  • The extra payment amount matters far more than which method you choose.
Table of contents
  1. How each method works
  2. How to choose
  3. FAQ

How each method works

Both methods pay minimums on everything and aim all extra money at one target debt. Snowball targets the smallest balance — quick wins, shrinking bill count, momentum. Avalanche targets the highest APR — mathematically optimal, every extra dollar kills the most expensive interest first. When a target is cleared, its payment rolls into the next target, which is why both methods accelerate over time.

How to choose

Run your real numbers above. If avalanche saves serious money, take the math. If the difference is small — common when APRs are similar — take the psychology: people who see a debt disappear in the first few months are far more likely to finish. And before locking in either plan, make sure a rate reduction isn't available: our credit counseling guide covers how nonprofit plans negotiate APRs down, which beats both methods. Track single-card scenarios with the credit card payoff calculator.

Frequently asked questions

Which is better, snowball or avalanche?

Avalanche always ties or wins on interest cost; snowball wins on motivation. Run both above — if the interest difference is small, choose the one you'll actually stick with.

Do I keep paying minimums on the other debts?

Yes — both methods require every minimum on time. Only the extra amount is aimed at the target debt.

What happens when the first debt is paid off?

Its entire payment rolls into the next target — that compounding rollover is why payoff speeds up over time.

Estimates are informational only, not financial advice or an offer of credit — see our disclaimers.