FREE ONLINE CALCULATOR

Credit Card Interest Calculator

Estimate your daily interest, monthly interest, and payoff time based on your balance, APR, and payment.

Current balance ($) APR (%) Payment mode Monthly payment ($) Billing cycle (days)

Estimated daily interest$0.00

Estimated interest this cycle$0.00

Estimated payoff time—

Total interest to pay off—

Show payment schedule

Month	Starting balance	Interest	Payment	Ending balance

This is an estimate, not a statement from your card issuer. Actual interest can vary based on daily balances, fees, grace periods, transaction dates, and your card agreement.

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How is credit card interest calculated?

Many credit card issuers use a daily periodic rate. This calculator estimates it as APR divided by 365, then applies it to your balance. Your actual issuer may use a different method.

What is a minimum payment?

A minimum payment is the smallest amount your card issuer requires. Issuers use different formulas, so this tool estimates it as monthly interest plus 1% of the balance, with a $25 floor.

What is APR?

APR is the annual percentage rate on your card. A higher APR means carrying a balance costs more over time. Paying more than the minimum can reduce both your payoff time and total interest.