MicroCalculatorsCredit Card Payoff Calculator
See how long it takes to pay off a credit card with a fixed monthly payment. Uses amortization: months = log(payment/(payment − balance×r)) / log(1+r).
How Long to Pay Off a Credit Card?
With a fixed monthly payment, payoff time depends on balance, APR, and how much you pay. The formula accounts for compounding: months = log(payment/(payment − balance×r)) / log(1+r), where r is the monthly rate (APR/12). Higher payments cut both time and total interest.
If your payment is below monthly interest, the balance grows instead of shrinking. Use this calculator to see how much extra to pay to finish sooner. For multiple cards, the avalanche method (highest APR first) minimizes total interest.
People Also Ask
- How long will it take to pay off my credit card?
- How much interest will I pay on my credit card?
- Should I pay off high-interest debt first?
Credit Card Payoff Calculator — FAQ
- Does paying more than the minimum reduce interest?
- Yes. Higher payments reduce principal faster and cut total interest significantly.
- What is a high APR?
- APRs above 20% are high. Average credit card APR is often 16–25%.
- Should I pay highest-interest debt first?
- Yes, the avalanche method (highest rate first) minimizes total interest.
Want to learn more?
Read our full guide: How to Pay Off Credit Card Debt — snowball vs avalanche methods, the minimum payment trap, and consolidation options.
Last updated: February 2026