Credit card interest calculator

Balance times APR times days over 365. One-cycle finance charge.

FAQ

How is the finance charge calculated? Balance × (APR / 100) × (days / 365). A simple daily-rate charge, not average-daily-balance with purchases and payments mixed in.

Why 365 days? This page uses a 365-day year. Some issuers use 360. Your card agreement controls.

Is this advice? No. It is the arithmetic. Not a credit offer.