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Credit Card Payoff Calculator — Debt-Free Date & Total Interest

Calculate how much to pay monthly to be debt-free by a target date, or see your payoff timeline for a fixed payment. Shows debt-free month and the true cost of minimum payments.

✓ Formula verified: January 2026For informational purposes only
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Credit Card Payoff

Results update instantly as you type

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The Formula

n = −log(1 − (r × B) / P) ÷ log(1 + r) · P = B × [r(1+r)^n] / [(1+r)^n − 1]

The first formula calculates the exact number of months needed to pay off a credit card balance with a fixed monthly payment. The second calculates the required monthly payment to be debt-free by a target date. Both are derived from the standard loan amortization formula adapted for revolving credit.

Variable Definitions

Balance & Timeline

Debt Amount & Payoff Duration

Your current credit card balance (B) directly determines the pay-off timeline. At 22% APR on a $5,000 balance, paying $200/month takes about 30 months; paying only the minimum takes over 8 years.

r

Monthly Rate

Your APR divided by 12. Credit card APRs are typically quoted as annual rates, but interest is charged monthly on the average daily balance.

P

Monthly Payment

The fixed amount you plan to pay each month. If this amount does not exceed the monthly interest charge, the balance will never decrease.

How to Use This Calculator

  1. 1

    Enter your current balance and APR (found on your monthly statement).

  2. 2

    Choose "Fixed amount" to set your own payment, or "By date" to find the monthly payment needed for a specific deadline.

  3. 3

    Review your debt-free date, total interest, total paid, and the monthly payoff timeline chart.

Common Applications

  • Find out exactly how long it will take to pay off your credit card balance and how much total interest you will pay at your current payment rate.
  • Determine the monthly payment needed to become debt-free by a specific date, such as before a major life event.
  • See how increasing your monthly payment by even a small amount dramatically reduces total interest and accelerates your payoff timeline.

Early payments go mostly toward interest — increasing your monthly payment dramatically reduces total interest paid

Understanding the Concept

Credit card debt is among the most expensive debt available to consumers, with average APRs currently exceeding 20%. The insidious nature of compound interest means that making only minimum payments keeps you in debt for decades. On a $5,000 balance at 22% APR, paying only the 2% minimum ($100/month initially) costs over $4,500 in interest and takes more than 8 years to pay off. Even worse, if your monthly payment does not exceed the monthly interest charge, your balance never decreases — you are treading water financially. This calculator makes the true cost visible and helps you find a realistic payoff strategy that fits your budget.

Frequently Asked Questions

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© 2026 TheCalcUniverse. All results are for informational purposes only.

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