Debt payoff calculator UK
Estimate how long one debt takes to repay with fixed monthly payments. See interest and total repayment, and check whether your payment covers monthly interest.
Enter your figures
Estimated payoff time
Inputs changed. Select Calculate result to update your estimate.
One fixed-rate balance with interest added monthly, followed by payment. No fees, new borrowing or daily interest. Reports when the payment cannot cover interest.
How the debt payoff calculator uk works
Simulate monthly interest and a capped final payment until the balance is cleared.
Data basis: mathematical formula using your inputs. Example prices and rates are illustrative, not current market quotes.
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Worked example: debt payoff time
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Current debt (£)
- 5,000
- Nominal annual interest (%)
- 18
- Monthly payment (£)
- 200
Estimated payoff time: 32 months
Simulate monthly interest and a capped final payment until the balance is cleared.
Debt payoff time: questions answered
Why can a payment fail to repay the debt?
If the payment is no greater than the monthly interest added, the model cannot reduce the balance. It asks you to increase the payment rather than showing an impossible payoff date.
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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