Plan your debt-free date with the snowball or avalanche method. Add each debt, set an extra payment and see total interest, payoff order and date. Free.

Debt Balance APR Min. payment

$
Snowball pays smallest balances first; avalanche targets the highest APR.
You'll be debt-free in
Total interest
Total paid
Payoff date
Minimum payments don't cover the monthly interest on at least one debt — the balance will keep growing. Increase a minimum or the extra payment.
Payoff order
Interest is compounded monthly on each balance. Minimum payments stay fixed; freed minimums roll into the next target debt along with your extra payment.

About Debt Payoff Calculator

The debt payoff calculator builds a month-by-month plan for clearing multiple debts using either the snowball method, which pays the smallest balances first, or the avalanche method, which targets the highest APR first. Add each debt with its balance, APR and minimum payment, set an extra monthly amount, and see your debt-free date.

Interest compounds monthly on every balance. Minimum payments stay fixed, and when a debt is cleared, its freed-up minimum rolls into the next target along with your extra payment — the “snowball” effect that accelerates the plan. The results show total interest, total paid, the payoff date and the exact order your debts fall.

If a minimum payment does not even cover a debt’s monthly interest, the calculator warns you that the balance will grow. The tool is free, and your figures never leave the browser.

How to use Debt Payoff Calculator

  1. Add each debt with its name, balance, APR and minimum payment.
  2. Enter any extra monthly payment you can commit beyond the minimums.
  3. Choose a strategy: snowball (smallest balance first) or avalanche (highest APR first).
  4. Read your debt-free date, total interest and total paid.
  5. Review the payoff order to see which debt clears when.

Frequently asked questions

Avalanche minimizes total interest by attacking the highest APR first. Snowball clears small balances sooner, which many people find more motivating. Run both here and compare the interest difference before deciding.

Its minimum payment does not disappear — the calculator rolls it into the next target debt on top of your extra payment, so the attack grows with every payoff.

At least one minimum payment is smaller than that debt’s monthly interest, so its balance keeps rising. Increase that minimum or the extra payment until the warning clears.

Each debt accrues interest monthly at its own APR divided by 12, applied to the remaining balance before payments are credited. That mirrors how most credit cards and loans bill.

Usually yes — even a modest extra amount shortens the timeline and cuts total interest, because it goes entirely to principal. Adjust the extra-payment field and watch the debt-free date move.

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