Credit card repayment calculator UK
Compare fixed credit card repayments with an extra monthly amount. Estimate payoff time and interest saved without new spending, fees or changing rates.
Enter your figures
Interest saved by paying extra
Inputs changed. Select Calculate result to update your estimate.
Uses an effective annual rate converted to a monthly rate. Assumes no new spending, fees, promotional rates or changing minimum payments. Actual cards often calculate daily interest.
How the credit card repayment calculator uk works
Simulate the fixed monthly payment and payment plus extra; compare payoff times and interest.
Data basis: mathematical formula using your inputs. Example prices and rates are illustrative, not current market quotes.
Read about data coverage and updates
Worked example: credit card fixed-payment plan
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Card balance (£)
- 3,000
- Effective annual interest (%)
- 24.9
- Fixed monthly payment (£)
- 100
- Additional monthly payment (£)
- 50
Interest saved by paying extra: £651.24
Simulate the fixed monthly payment and payment plus extra; compare payoff times and interest.
Credit card fixed-payment plan: questions answered
Does this model use a card’s changing minimum payment?
No. It compares two fixed monthly payments. Actual minimum payments, daily interest, promotional rates, fees and further spending can produce a different repayment schedule.
Using your result
Example inputs are a starting point. Replace them with your figures and select Calculate result. Results are rounded for display; calculations use unrounded values.
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