Required lump-sum savings rate calculator UK
Find the annual compound rate required for an existing lump sum to reach a target. Check the formula, worked example and limits before using your own figures.
Enter your figures
Required annual compound rate
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. No further deposits, withdrawals, fees or tax. A calculated rate is not evidence that a suitable account exists.
How the required lump-sum savings rate calculator uk works
Required annual rate = ((target ÷ principal)^(1/years) − 1) × 100.
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: required lump-sum savings rate
This illustration uses the calculator’s example inputs. It is not a quote or a recommended financial decision.
- Current lump sum (£)
- 10,000
- Target balance (£)
- 12,000
- Years
- 5
Required annual compound rate: 3.71%
Required annual rate = ((target ÷ principal)^(1/years) − 1) × 100.
Required lump-sum savings rate: questions answered
What does the required lump-sum savings rate calculation include?
Required annual rate = ((target ÷ principal)^(1/years) − 1) × 100. Use your actual figures. Any prefilled price, fee, rate or return is an editable illustration, not a current product quote. No further deposits, withdrawals, fees or tax. A calculated rate is not evidence that a suitable account exists.
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.
Explore all 205 UK calculators