Credit Card Calculator
Quick answer
Enter balance, APR, payment (minimum or fixed). Long horizons explode interest—compare to fixed installment alternatives.
For a related estimate, see Apr Calculator.
Explore further: Auto Loan Calculator · Car Loan Calculator
Revolving vs installment
Cards compound on balances that move with spending; installment loans amortize on a fixed schedule.
Explore further: Credit Card Interest Calculator · Credit Card Payoff Calculator
Credit cards revolve: interest accrues on average daily balance, minimums stretch payoff for years. This intent frames minimum-pay traps and the benefit of fixed paydown amounts.
How to use this calculator
- Minimum payment rules: Issuers use formulas—plug actual minimum from statement when possible.
- New purchases: Mixed grace and revolve behaviors change interest—model conservatively.
- Promo APR: 0% windows change payoff—split scenarios if needed.
Real-world examples
- Example: $6k @ 19% paying $200/mo vs minimums—years of difference in payoff (illustrative).
- Sensitivity check: Nudge the rate by about +0.5% and the principal by about −5%. If the payment, break-even, or target amount moves enough to change your decision, you are still on a steep part of the curve where small inputs matter.
Explore further: Debt Avalanche Calculator
What this means
Minimum payments stretch interest costs—fixed paydown amounts change the curve dramatically.
FAQ
Is this a loan commitment?
No. Outputs are educational estimates. Final payments, APR, and fees come from your lender’s disclosures.
How accurate is this calculator?
It applies standard math to the inputs you enter. Real lenders, payroll rules, and rounding can differ—use results for planning and comparison, not as binding quotes.
Why might my result differ from another website?
Different assumptions (APR vs note rate, day-count, tax year, rounding mode, or unit definitions) shift outputs slightly. Align inputs with the same definitions when you compare.