Compare Snowball vs Avalanche debt payoff strategies with this free calculator. See your total interest paid, payoff timeline, and month-by-month payment plan for each method. Find out which approach saves you the most money and gets you debt-free fastest. No signup required — your financial data never leaves your browser.

How to Use This Debt Payoff Calculator

1. Enter your debts — Add each debt with its name, current balance, interest rate (APR), and minimum monthly payment.
2. Set your extra payment — Enter any additional amount you can put toward debt each month beyond the minimums.
3. Click Calculate — The tool instantly compares Snowball (smallest balance first) and Avalanche (highest interest first) strategies.
4. Review your results — See side-by-side comparisons of total interest paid, payoff date, and a detailed month-by-month breakdown for each method.
5. Export or save — Copy your results or export the data for your records.

Frequently Asked Questions

What is the difference between Snowball and Avalanche methods?

The Snowball method prioritizes paying off your smallest debt first for quick psychological wins, while the Avalanche method targets the highest interest rate debt first to minimize total interest paid. Both methods have you pay minimums on all debts and direct extra payments to one priority debt at a time.

Which debt payoff method saves more money?

The Avalanche method almost always saves more money on interest because it eliminates the most expensive debt first. However, the Snowball method can keep you motivated by providing faster wins. This calculator shows you exactly how much each method costs so you can make an informed choice.

Is this debt calculator accurate?

Yes. The calculator uses standard amortization formulas to compute monthly interest and payment allocations. It accounts for compound interest, varying balances, and the cascading effect of paying off individual debts. Results are based on the information you provide and assume consistent payments.

Is my financial data safe?

Your data is completely private. All calculations run in your browser using JavaScript. No debt information, balances, or results are sent to any server. Your data stays on your device and is never stored or transmitted.

Can I use this for student loans, credit cards, and mortgages?

Yes. This calculator works for any type of debt including credit cards, student loans, personal loans, auto loans, medical debt, and more. Simply enter each debt with its balance, interest rate, and minimum payment to see your optimized payoff plan.

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