Credit Card Payoff Calculator

Estimate the number of months required to pay off a credit card balance given its APR and a fixed monthly payment amount.

Inputs
Results
Months to Pay Off
33.7
Total Interest Paid (approx.)
$1,749.54

Try an example

Formula

n = −ln(1 − (Balance × r) / Payment) / ln(1 + r), where r = APR / 12

Learn How This Works

How Long It Really Takes to Pay Off a Credit Card

The debt payoff formula explained, with a real example showing how fixed payments interact with high APRs.

The Fastest Way to Pay Off Multiple Debts: Snowball vs. Avalanche

How to compare debt payoff strategies using real numbers, and why the mathematically optimal method isn't always the one that works best.

Frequently Asked Questions

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