List all debts sorted by interest rate (highest first)
Pay minimum payments on all debts
Put all extra money toward the highest interest debt
When paid off, roll that payment to the next highest rate
Avalanche (This Calculator)
Targets highest interest rate first. Saves the most money on interest over time.
Snowball Method
Targets smallest balance first. Provides quick wins for motivation.
By targeting high-interest debt first, you reduce the amount of interest accruing each month.
Higher Rate Paid First = Less Total Interest
The debt avalanche is a debt repayment strategy that prioritizes paying off debts with the highest interest rates first, regardless of balance size.
This method is mathematically optimal for minimizing total interest paid over the life of your debts, potentially saving you hundreds or thousands of dollars.
The avalanche method is ideal when:
- You have debts with significantly different interest rates
- Saving money is your top priority
- You're disciplined and don't need quick wins for motivation
- You have high-interest credit card debt
The Debt Avalanche Method is a mathematically optimal debt payoff strategy that targets debts in order of highest interest rate first, regardless of balance size. By attacking the most expensive debt first, you minimize the total interest paid over the life of your debt repayment plan. This approach is ideal for disciplined borrowers who want to save the most money possible and are motivated by numbers rather than quick wins.
Unlike the Debt Snowball method, the avalanche approach may take longer to pay off your first debt since it targets high balances that carry high rates — but the total interest savings are significantly greater. For example, on a typical household debt load of $30,000, the avalanche method can save thousands of dollars compared to making only minimum payments or using the snowball strategy.
Enter each of your debts including the name, current outstanding balance, required minimum monthly payment, and the annual interest rate (APR). Add as many debts as you have — credit cards, personal loans, student loans, auto loans, and any other balances. The calculator automatically ranks them from highest to lowest interest rate following the avalanche method.
Enter any extra monthly amount you can apply toward debt beyond minimum payments. Even $50–$100 extra per month can cut years off your repayment timeline and save substantial interest. Review the payoff order, debt-free date, and total interest to understand exactly what this strategy means for your financial future.
The Debt Avalanche saves more money mathematically, but the Debt Snowball provides faster psychological wins by eliminating small balances first. Choose the avalanche method if you are motivated by data, have high-APR credit card debt, and can stay committed without needing early victories. Choose snowball if you need motivation from seeing debts disappear quickly.
Both methods require paying more than the minimums to be effective. Consistency is everything — pick the strategy you will actually stick with. If you start with avalanche and lose motivation, switching to snowball is far better than abandoning the plan entirely. Many people succeed by combining both: use snowball to eliminate one or two small debts for a quick win, then switch to avalanche for the remainder.
Debt avalanche calculations are estimates and may vary based on interest rate changes, missed payments, or additional charges. This calculator assumes fixed interest rates and consistent monthly payments. Actual payoff timelines and interest amounts may differ. Consult a qualified financial advisor for personalized debt management advice tailored to your specific situation.