How this calculator works
Minimum payments are allocated to every debt first. Remaining monthly budget is directed to the priority debt: the smallest balance for snowball or highest APR for avalanche. When one debt clears, its payment capacity rolls to the next.
How to use it
- Add every unsecured debt you want to model.
- Enter balance, APR and minimum payment for each.
- Enter the total amount you can reliably pay toward these debts each month.
- Choose snowball or avalanche.
- Compare payoff time, interest and the order debts clear.
Assumptions and limitations
This is a planning model and does not account for changing rates, promotional periods, fees or lender-specific minimum-payment formulas. If priority bills or essential payments are at risk, repayment optimisation may not be the right first step.