Debt Snowball vs. Avalanche Calculator

Compare payoff time and estimated interest when extra money targets the smallest balance or highest APR.

Your debts

Debt 1

Your result

Add your debts and select Calculate to compare the strategies.

How to use the debt payoff comparison

Enter the requested values, review the units, and select Calculate. The result updates only after every input passes validation.

Both strategies make every minimum payment. The snowball sends extra money to the smallest balance, while the avalanche targets the highest APR. Freed minimum payments roll into the remaining debts.

Worked example

For two debts, the avalanche commonly saves interest when the larger debt has the higher APR, while the snowball may close a smaller account sooner.

Limitations

This model accepts as many fixed-rate debts as needed and assumes no new charges, fees, rate changes, or missed payments.

This calculator provides an educational estimate and does not replace advice from a qualified financial or tax professional.