Debt Snowball vs Avalanche Calculator
Which debt payoff method is right for you? Enter up to three debts and your extra monthly payment to see exactly how the snowball and avalanche compare.
How this calculator works
Both strategies pay the minimum on every debt plus your extra amount, but target the extra differently: the snowball aims it at the smallest balance (closing accounts fast for motivation), the avalanche at the highest APR (minimizing interest). The calculator simulates both month by month — when a debt is paid off, its minimum payment rolls into the next target.
Frequently asked questions
Which strategy is mathematically better?
The avalanche always costs less total interest and is usually a bit faster, because it attacks the most expensive debt first. On typical credit card balances the difference is modest — often a few hundred dollars and a few months — which is why the snowball's psychological wins matter.
Is the snowball ever the right choice?
Yes — for people who need quick wins to stay motivated. Paying off the smallest debt gives a real, visible result within months, which research (and Dave Ramsey's followers) credit with keeping people on track. A payoff plan you complete beats the optimal plan you abandon.
What if my minimum payment is less than the interest?
Then the balance grows and no strategy can finish — most cards charge a minimum above the interest, but teaser-rate or interest-only loans can trap you. The calculator flags a plan that cannot finish within 50 years; in that case you need to free up more monthly payment.
Disclaimer: Results are estimates for general information only and do not constitute financial, tax, or legal advice. Figures reflect 2026 rules and may change. Always confirm current limits and consult a qualified professional before making decisions. Official figures: IRS.gov · 2026 limits per IRS tax inflation adjustments.