Debt Snowball vs Avalanche Calculator
Use the Debt Snowball vs Avalanche Calculator
Compare payoff months and interest cost under the snowball and avalanche repayment methods.
- Repayment strategy comparison
- Multi-debt planning
- Behavioral versus mathematical payoff views
Include every eligible debt with its current balance, APR, and minimum payment, then apply the same sustainable extra monthly budget to both strategies for a fair comparison.
What this calculator covers
Inputs you can model
- Debt accounts
- Extra monthly payment
Results you can review
- Recommended strategy
- Avalanche interest saved
- Avalanche months saved
- Snowball months
- Avalanche months
- Snowball payoff order
- Avalanche payoff order
- Snowball payment schedule
- Avalanche payment schedule
Method, policy basis, and limitations
How the estimate is built
Snowball ordering targets the smallest balance first, while avalanche ordering targets the highest APR; paid-off minimum payments and the entered extra budget roll to the next debt.
Important limitation
This is a simplified repayment comparison. Fees, promotional rates, variable APRs, new borrowing, missed payments, creditor allocation rules, and settlement terms are not modeled.
Your inputs
Enter the values you know. Required fields should be completed first, and optional fields can be left blank if they do not apply to your situation.
Run the calculator to see the planning signal, key measures, reconciliation detail, and any schedules or stress scenarios returned for these inputs.
Your results
The top cards show the most important answers first. Detailed schedules, scenario tables, and supporting notes appear underneath for deeper review.
Inputs changed. Run the calculator again to refresh these results; copy, print, PDF, and Excel actions are unavailable until then.
This is a simplified repayment comparison. Fees, promotional rates, variable APRs, new borrowing, missed payments, creditor allocation rules, and settlement terms are not modeled.
