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Credit card & loan interest calculator

Estimate interest costs, total repayment, and payoff time for a balance with a fixed monthly payment.

Your inputs

USD. Monthly payoff estimate for one balance and one fixed interest rate. Example values are provided.

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Your result

Educational estimate. Check important decisions against complete records.

How this calculator works

Calculations stay in this browser. “Save to Pro” sends this report to your account when signed in with an active membership.

Understand the process →

Learn more from the CFPB: credit-card interest and loan amortization.