Credit Card Repayment Calculator

Estimate payoff time and total interest for a credit card balance. You can also calculate the monthly payment needed to hit a target payoff time.

Pick a mode, enter your numbers, then click Calculate.

Payoff time (given payment) Payment (target months)

Assumes no new purchases/fees and a constant APR (simplified).

Current balance

APR (%)

Monthly rate: r = (APR ÷ 100) ÷ 12

Currency (formatting)

Currency affects display only.

Monthly payment

If payment is too low, the balance may never go down.

Results

Monthly payment

—

Estimated payoff time

—

Total interest

—

Total paid

—

Formula

Amortization preview (first 12 months)

Month	Payment	Interest	Principal	Balance

Preview uses a simplified monthly interest model; your statement may apply interest differently.

Tool description

This credit card payoff calculator estimates how long it will take to pay off a balance and how much interest you’ll pay, based on a constant APR and a fixed monthly payment. It can also estimate the payment needed to pay off the balance in a target number of months.

How to use

Select a mode: payoff time (given payment) or payment (target months).
Enter your balance and APR.
Enter either your monthly payment or your target months.
Calculate and review the payoff time, interest, and schedule preview.

Why it’s useful

Understand how APR impacts interest cost over time.
Compare different payment amounts to see payoff time changes.
Set a realistic monthly payment to meet a payoff goal.

Use cases & interpretation

Payoff planning: Increase payment until the payoff time matches your goal.
Cost awareness: Compare total interest across different APRs or payments.
Budgeting: Use target-month mode to estimate a “get debt-free by” plan.

FAQs

Credit cards can have fees, promotional APRs, interest calculated using daily balances, and varying payment rules. This tool assumes a constant APR and a fixed monthly payment with monthly compounding.

If the monthly payment is less than (or equal to) the monthly interest, the balance won’t decrease and the card may never be paid off. The calculator will warn you in that case.

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