Debt Snowball vs Avalanche Calculator
Compare the debt snowball and debt avalanche payoff methods. See which strategy saves more money or provides faster psychological wins.
Your Debts
Enter your debts with balances, interest rates, and minimum payments
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Strategy Comparison
Debt Snowball
Pay smallest balance first for quick wins
Debt Avalanche
Pay highest interest first to save money
Recommendation
Enter your debts to see which strategy works best for you.
Payoff Timeline Comparison
| Debt | Snowball Payoff | Avalanche Payoff |
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Debt Snowball Method
Popularized by Dave Ramsey, the snowball method focuses on paying off the smallest debt first while making minimum payments on others. Once the smallest is paid off, roll that payment into the next smallest.
Pros: Quick wins build motivation and momentum
Cons: May pay more in interest over time
Debt Avalanche Method
The avalanche method targets the highest-interest debt first while making minimum payments on others. This mathematically optimal approach minimizes total interest paid.
Pros: Saves the most money on interest
Cons: May take longer to see first debt paid off
Which Method Should You Choose?
Choose Snowball if you need motivation and quick wins to stay on track. Choose Avalanche if you're disciplined and want to save the most money. Both work - the best method is the one you'll stick with!
Frequently Asked Questions
The avalanche method always saves more money mathematically because it eliminates high-interest debt first. However, the difference may be small if your interest rates are similar.
Yes! Some people start with the snowball for quick motivation, then switch to avalanche once they're in the habit. The key is consistent extra payments toward one debt at a time.
Consolidation can simplify payments and potentially lower rates, but it doesn't eliminate debt faster on its own. You still need a payoff strategy and discipline to avoid running up new debt.
About the Debt Snowball Avalanche Calculator
The debt snowball pays smallest balances first. The debt avalanche pays highest interest rates first. Both work; both have merits. This page runs the maths and helps you choose based on your personality and your debts.
The Formula
Snowball: order debts by balance ascending. Avalanche: order by APR descending. In both: pay minimum on all, send all extra to the top debt. When it's gone, snowball that minimum into the next debt.
Worked Example
Three debts: A $1,000 at 22%, B $4,000 at 18%, C $8,000 at 12%. Extra $300/month. Snowball: kill A first (~3 months) → B → C. Total interest: ~$2,500. Avalanche: kill A first (highest rate AND lowest balance!) → B → C. Same order here, same result. When ordering differs, avalanche saves typically $300-2,000 in interest.
The behavioural argument for snowball
Harvard Business Review studies found people who pay smallest balance first stick with their plan more than people optimizing for interest. Early wins build momentum. If you've abandoned debt plans before, snowball is more likely to work.
The mathematical argument for avalanche
When debts have very different rates (e.g., one 5% student loan and one 28% credit card), avalanche can save many thousands in interest. Mathematical superiority. Best for disciplined people who don't need motivational wins.
Hybrid approach
Some practitioners knock off any sub-$1,000 debt first for the morale boost, then switch to strict avalanche on the larger balances. Captures both motivational and mathematical wins.
Common Mistakes
- Spreading extra payments across all debts equally. Concentration on one debt is much more effective.
- Switching strategies mid-stream. Pick one and execute.
- Forgetting to apply the freed-up minimum to the next debt after one is paid off.
Frequently Asked Questions
Which gets me debt-free faster?
Avalanche, usually by 3-12 months. But only if you stick with it.
Should I include my mortgage?
Usually not — too long-term and rate is too low. Focus on consumer debt first.
This calculator is for informational purposes only and does not constitute financial, tax, or legal advice. Consult a licensed professional before making significant financial decisions.