💳 Credit Card Interest Calculator

See the true cost of carrying a credit card balance — daily and monthly interest charges, total interest paid, and how long minimum-only payments take.

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Inputs
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Results
Months to Pay Off
Daily Interest Rate
First Month's Interest
Total Interest Paid
Total Amount Paid
Interest as % of Balance
Minimum Payment (2%)
Time on Minimums Only
Daily Interest = Balance × (APR ÷ 365)
Monthly Interest = Balance × (APR ÷ 12)
Minimum Payment ≈ 2% of balance (or $25, whichever is higher)

Credit card interest compounds daily. Each month's interest is added to your balance, so next month you pay interest on interest. This is why even a few months of carrying a balance at 22% APR can cost more than a personal loan at 12% APR over the same period.