Credit Card Payoff Calculator

What is the Credit Card Payoff Calculator?

If you're carrying a balance on a credit card, this calculator tells you something the credit card company would rather you didn't know: exactly how long it'll take to pay it off and how much interest you'll pay in total. It also works in reverse — you can set a target payoff date and see how much you need to pay each month to hit it. This tool is useful for anyone working on getting out of credit card debt, whether that's one card or several. CalciHub's version gives you the payoff timeline and total interest for both fixed monthly payments and a target payoff date.

How Does It Work?

Credit cards use daily periodic interest based on your Annual Percentage Rate (APR). The calculator uses the standard amortization formula adapted for revolving debt:

n = −log(1 − (r × B) / M) / log(1 + r)

n = Number of months to pay off the balance

B = Current balance

r = Monthly interest rate (APR ÷ 12)

M = Monthly payment amount

How to Use CalciHub's Credit Card Payoff Calculator

1. Enter your current credit card balance.

2. Input your card's APR (Annual Percentage Rate — shown on your statement).

3. Choose your mode: either enter a fixed monthly payment, or set a target payoff date.

4. Click Calculate to see how long it takes and the total interest you'll pay.

Tip: Always pay more than the minimum. On a $5,000 balance at 20% APR, the minimum payment might be $100 — but that could take over 30 years to pay off.

A Quick Example

Sarah has a Chase credit card with a $4,200 balance and a 22.99% APR. She's been paying the $90 minimum each month and wonders why the balance barely moves.

Balance: $4,200

APR: 22.99%

Monthly payment: $90

Payoff time: 9 years and 4 months

Total interest paid: $5,840

That's nearly $6,000 in interest on top of $4,200 she already spent. If Sarah raises her monthly payment to $200, she pays it off in 2 years and 7 months and pays only $1,190 in interest.

Frequently Asked Questions