Credit Card Payoff Calculator
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This calculator shows how long it will take to pay off a credit card and how much interest you'll pay along the way. Enter your balance, the card's APR, and the fixed amount you pay each month. It assumes interest is charged monthly on the remaining balance. Everything runs in your browser.
How to use
- Enter your current balance and the card's APR.
- Enter the fixed amount you plan to pay each month.
- Read the months to pay off and the total interest.
How it works
Each month the card charges interest equal to the balance times the monthly rate (APR divided by 12). Your payment first covers that interest, and whatever is left reduces the balance. The calculator repeats this month by month until the balance reaches zero, adding up the interest. If a payment is smaller than the first month's interest, the balance can never fall — so it warns you instead.
Features
Payoff time
See the number of months, shown as years and months too.
Total interest
Find out how much the debt costs you in interest.
Too-low warning
Get warned if a payment can't cover the monthly interest.
Private & instant
All math runs in your browser; nothing is uploaded.
When to use it
Debt planning
See how long a fixed payment takes to clear the card.
Compare payments
Try higher payments to see how much interest you save.
Set a goal
Find a payment that clears the balance by a target date.
Cost awareness
Understand the real cost of carrying a balance.
Notes
- This is an estimate; cards may compound daily and add fees.
- It assumes a fixed payment and no new spending on the card.
- Paying more than the minimum greatly cuts the interest.
- All calculations run on your device; nothing is uploaded.
FAQ
- How is the payoff time calculated?
- It steps month by month: interest is added, your payment is applied, and the balance shrinks until it reaches zero.
- What does the too-low warning mean?
- If your payment is less than the first month's interest, the balance won't go down, so no payoff is possible. Raise the payment.
- Is this exactly what my bank charges?
- It's a close estimate. Real cards may compound interest daily and add fees, so your statement can differ slightly.
- Does extra spending affect it?
- Yes. This assumes no new purchases. New spending increases the balance and the time to pay off.
- Is my data uploaded?
- No. Everything is calculated in your browser and nothing leaves your device.