Fixed-term savings bond interest calculator UK
Estimate a fixed-term deposit balance under a selected interest-payment method. Check the formula, worked example and limits before using your own figures.
Enter your figures
Illustrative maturity amount
Inputs changed. Select Calculate result to update your estimate.
Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Uses the selected convention, with no access penalties or tax. A fractional annual-compounding period is a mathematical equivalent, not a provider’s exact accrual rule.
How the fixed-term savings bond interest calculator uk works
Simple option: P(1+rt). Annual-compounding option: P(1+r)^t.
Data basis: mathematical formula using your inputs. Example prices and rates are illustrative, not current market quotes.
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Worked example: fixed-term savings bond interest
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Deposit (£)
- 10,000
- Nominal annual rate (%)
- 4
- Term in years
- 2
- Interest convention
- Simple interest paid at maturity
Illustrative maturity amount: £10,800.00
Simple option: P(1+rt). Annual-compounding option: P(1+r)^t.
Fixed-term savings bond interest: questions answered
What does the fixed-term savings bond interest calculation include?
Simple option: P(1+rt). Annual-compounding option: P(1+r)^t. Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. Uses the selected convention, with no access penalties or tax. A fractional annual-compounding period is a mathematical equivalent, not a provider’s exact accrual rule.
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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