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Debt Payoff Calculator

Free debt payoff calculator. See how long to clear a balance and the total interest at your monthly payment.

See how long until you are debt-free and how much interest you will pay. Raise the payment to see it shrink fast.

How the Debt Payoff Calculator works

The calculator simulates month-by-month payoff: interest accrues on the balance, your fixed payment covers it plus principal, until the balance reaches zero.

Example calculation

$8,000 at 22.9% APR with $300 a month takes about 38 months and roughly $3,300 in interest.

Tips for using the Debt Payoff Calculator

  • Pay above the minimum to escape the interest trap.
  • Use the avalanche method — highest APR first.
  • Stop adding new charges while paying down.

Debt Payoff Calculator — frequently asked questions

Why so slow?
On high-APR debt, most of a small payment is interest, so the balance barely moves.
Fastest method?
Pay above the minimum and target the highest-APR balance first (avalanche method).
Snowball or avalanche method?
Avalanche (highest rate first) saves the most money; snowball (smallest balance first) builds motivation.
Why does payoff take so long?
On high-APR debt most of a small payment is interest, so principal barely moves.

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