DEBT PAYOFF CALCULATOR
Compare Snowball vs Avalanche methods. See exactly when you'll be debt-free and how much interest you'll pay.
Your Debts
List the debts you want to pay off.
Extra Payment
Extra amount you can pay each month beyond minimums.
Payoff Summary
Method Comparison
Frequently Asked Questions
What is the snowball method?
What is the avalanche method?
Which method is better?
What is an extra payment?
How does this calculator work?
How does the Debt Calculator work?
Is the Debt Calculator free to use?
How accurate are the results?
Is my data safe when using Debt Calculator?
How to Use
Add your debts
List each debt with its balance, interest rate, and minimum monthly payment.
Set extra payment
Enter how much extra you can pay each month beyond the minimums.
Compare methods
See side-by-side comparison of snowball vs avalanche interest and payoff time.
Pick your plan
Choose the method that fits your goals and start your debt-free journey.
How to Calculate
About the Debt Calculator
The Debt Calculator is a free online tool that helps you compare snowball and avalanche debt payoff methods and see when you'll be debt-free.
Balances, rates and payment plans you model stay on this device for payoff planning. Compare avalanche versus snowball orders and see interest saved before changing payments.
Related Tools
Methodology & feedback
Figures run locally in your browser from the values you enter (page updated ). Estimates are educational only — verify finance, tax and health decisions with a qualified professional (see Disclaimer). Spotted an error? Report it via contact and we correct with a new update date.