Credit Card Payoff Calculator
Calculate how long it could take to pay off your credit card, how much interest you may pay, and how much faster an extra monthly payment could clear the balance.
Credit card details
This calculator auto-updates when values change.
This calculator is for general information only and is not financial advice. Actual credit card interest can vary by provider and repayment timing.
Results
Results update automatically.
Time to pay off
32 months
Interest saved
£375.99
Months faster
10
Balance over time
About This Credit Card Payoff Calculator
This credit card payoff calculator estimates how long it may take to clear a card balance with a fixed monthly payment. It is designed for practical debt planning: you can see the base payoff timeline, then test an extra monthly payment to understand the impact immediately.
Credit card debt can be expensive because interest is charged repeatedly on the unpaid balance. A payment that feels large may still reduce the debt slowly if the APR is high. Seeing the interest cost separately helps you judge whether to prioritise this balance over lower-interest loans or discretionary spending.
The calculator assumes no new purchases are added to the card. For the most accurate plan, use the current statement balance, the purchase APR, and a monthly payment you can make consistently.
How to Use This Calculator
- 1
Enter your card balance
Add the current outstanding balance on the credit card.
- 2
Enter the APR
Use the card annual percentage rate.
- 3
Enter monthly payment
Add the amount you plan to pay each month. Use a realistic number that you can repeat consistently, not a one-off payment you may not be able to maintain.
- 4
Test an extra payment
Add an optional extra payment to see how much interest you could save and how many months faster the card may be paid off.
- 5
Review payoff time
Check the estimated months to pay off, interest cost, total paid, and balance-over-time chart. If the calculator warns that your payment is too low, increase the payment until the debt begins to fall.
Frequently Asked Questions
How is credit card payoff calculated?v
The calculator converts your APR into a monthly interest rate, adds that interest to the remaining balance, subtracts your planned payment, and repeats the process until the balance reaches zero. This creates an estimated payoff month count, total interest cost, and total amount repaid.
Why does a low payment take so long?v
Credit card APRs are usually high, so a small payment can be swallowed by interest before much principal is reduced. Increasing the payment, even by a modest extra amount each month, can shorten the payoff timeline and cut total interest sharply.
Does this include new spending?v
No. The payoff estimate assumes you make no new purchases, cash advances, balance transfers, fees, or late payments. If you keep using the card while paying it down, the real payoff date may be later than the calculator shows.
Can the payment be too low?v
Yes. If your monthly payment does not cover the interest being added, the balance will not fall. The calculator flags this because the debt would either stay roughly the same or grow instead of being paid off.
How should I use the extra payment field?v
Enter any amount you could pay above your normal monthly payment. The calculator compares the original payoff plan with the higher payment and shows the estimated interest saved and months faster, making it easier to judge whether a budget change is worthwhile.