Debt Payoff Calculator
Enter at least one debt as "name, balance, APR%, min payment" and check that minimum payments actually cover the interest.
Avalanche (highest APR first)
Payoff time:
Total interest:
Snowball (smallest balance first)
Payoff time:
Total interest:
Free debt payoff calculator that runs both the avalanche and snowball strategies side by side on your actual debts — we checked calculator.net's debt payoff calculator directly and it only implements avalanche, explaining in text (but never demonstrating with numbers) that snowball usually costs more.
How it works
- List your debts, one per line: name, balance, APR%, minimum payment
- Add any extra amount you can put toward debt each month
- See payoff time and total interest for both avalanche (highest rate first) and snowball (smallest balance first), side by side
Frequently asked questions
Which strategy should I use?
Avalanche (paying off the highest-interest debt first) almost always costs less in total interest — this tool shows you exactly how much less for your specific debts. Snowball (paying off the smallest balance first) usually costs more but clears an individual debt sooner, which some people find more motivating to stick with.
Why did calculator.net only show me one method?
We checked their debt payoff calculator directly — it only implements the avalanche method. It mentions in text that snowball 'often results in paying more interest' but never runs the actual numbers to show you by how much for your situation.
Related tools
From the blog
Update history
- 2026-09-01 Added: a cover image (two paths of shrinking coin stacks racing to a finish line, one marked with a flame icon and the other a snowflake) — used as the card thumbnail, social share image, and blog title image.
- 2026-09-01 Launched: debt payoff calculator (no button) — simulates both avalanche and snowball strategies on any list of debts, showing payoff time, total interest, and the actual dollar difference between the two. Entirely client-side.