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Debt Snowball Calculator.

Compare debt snowball vs avalanche strategies to pay off debt faster

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Results update as you type.

Your Debts

Debt #1

Debt #2

Debt #3

Repayment Plan

Total Debt

$15,000

Total Minimum Payment

$410

Results update automatically as you edit your debts.

Recommendation

Both methods will give you nearly identical results. Choose based on preference: Snowball for motivation, Avalanche for math.

Snowball MethodSmallest Balance First

Payoff Time2y 5m
Total Interest$2,791
Total Paid$17,791

Payoff Order:

Credit Card 2 - Month 9
Credit Card 1 - Month 20
Personal Loan - Month 29

Avalanche MethodHighest APR First

Payoff Time2y 5m
Total Interest$2,791
Total Paid$17,791

Payoff Order:

Credit Card 2 - Month 9
Credit Card 1 - Month 20
Personal Loan - Month 29

Understanding Debt Payoff Strategies

Snowball Method: Snowball Method: Pay off the smallest balance first. This gives you psychological wins early, helping you stay motivated. You'll see debts disappear quickly, building momentum.
Avalanche Method: Avalanche Method: Pay off the highest interest rate first. This is mathematically optimal and saves you the most money in interest over time.
Which to choose? If the interest savings are significant ($500+), use avalanche. If you need motivation and quick wins, use snowball. Both work—the best method is the one you'll stick with!

Cite this calculator

Canonical URL: https://mathify.one/fr/finance/debt-snowball

Cite as: Mathify. (2026). Calculateur Boule de Neige de Dettes. https://mathify.one/fr/finance/debt-snowball

Use Cases

Compare payoff strategies for your debts

Enter your debts, balances, interest rates, and monthly payment to see how the snowball and avalanche methods differ in payoff time and total interest paid.

Example: See how paying off a $500 medical bill first compares to tackling a 20% APR credit card.

Plan a debt payoff timeline

Use the calculator to estimate how long it will take to become debt-free under each strategy, helping you set realistic goals and stay motivated.

Example: Find out if you can be debt-free in 2 years with the snowball method.

Frequently Asked Questions

What is the debt snowball method?
The debt snowball method involves paying off your smallest debts first while making minimum payments on larger debts. Once the smallest debt is paid off, you roll its payment amount into the next smallest debt, creating a 'snowball' effect. This method focuses on quick wins and motivation.
How does the debt snowball compare to the debt avalanche?
The debt avalanche method prioritizes debts with the highest interest rates first, potentially saving more money on interest over time. The debt snowball focuses on smallest balances first, which can provide psychological wins. The calculator compares both to show which strategy gets you debt-free faster and which saves more interest.
Which method is better: snowball or avalanche?
It depends on your personality and financial goals. The avalanche method is mathematically optimal, saving more interest, but the snowball method may be more motivating for some people. Use the calculator to see the difference in payoff time and interest paid for your specific debts.

Tips & Common Mistakes

Tips

  • List all your debts with their balances and interest rates to get an accurate comparison.
  • Consider your personality: if you need quick wins, the snowball method may be better; if you want to save the most interest, choose the avalanche.
  • Make sure to include all minimum payments in your monthly budget to avoid missed payments.
  • Revisit the calculator after paying off a debt to update your plan and see your progress.

Common Mistakes to Avoid

  • Forgetting to include all debts, such as personal loans or medical bills, which can skew the comparison.
  • Ignoring the psychological aspect: choosing the avalanche method but losing motivation because it takes longer to see a debt paid off.
  • Not accounting for extra payments or changes in interest rates, which can affect the payoff timeline.

Last updated: August 13, 2026