Debt Avalanche Calculator guide
This calculator models a debt payoff strategy across multiple debts. The avalanche method sends extra money to the highest interest rate first while minimum payments continue on the other debts.
What changed in this version
- Supports four debts with balances, APRs, and minimum payments.
- Automatically sorts the recommended payoff order.
- Shows payoff timeline and compares against the other strategy.
Calculation method
Minimum payments continue on all debts. Extra payoff money targets one debt at a time.
The model accrues interest monthly and rolls freed-up payments into the next debt after each payoff.
Snowball vs avalanche
Snowball can be motivational because small debts disappear quickly. Avalanche is usually more mathematically efficient because it attacks higher APR balances first.
How to use this calculator
- Enter realistic values that match your current situation.
- Press Calculate to refresh the estimate.
- Compare the main result with the supporting details in the result panel.
- Change one input at a time to see which variable affects the result most.
Planning note: Debt Avalanche Calculator gives an educational estimate. It does not include every tax rule, fee, platform policy, market condition, or personal constraint, so use it as a quick planning reference rather than a final decision.
FAQ
Does this replace financial advice?
No. It is a planning estimate. Actual payoff depends on fees, changing rates, and payment timing.
What if minimum payments are too low?
If a payment cannot cover interest, the calculator may show a very long or impossible payoff timeline.