Pension Drawdown Calculator
Estimate how long a pension pot could last at a chosen annual withdrawal.
Approximate duration
23.4 years
- Annual withdrawal
- £15,000.00
Illustrative projection only. Investment returns, inflation, tax and changing withdrawals are not included and this is not financial advice.
v1.0 · Reviewed September 2026
How this is worked out
The pot grows at the rate you enter while the withdrawal is taken each year. Where growth cannot sustain the withdrawal, the number of years is solved from the standard annuity-style formula.
Worked example
- Pot £250,000
- £15,000 a year
- 3% growth
About 23.4 years
Assumptions and limits
- Assumes a steady growth rate every year. Real investment returns vary, and poor returns early on shorten the pot considerably.
- The withdrawal is a flat cash amount that never rises, so inflation is not accounted for.
- Ignores income tax on withdrawals, charges and the 25% tax-free element.
- Illustrative only, and not financial advice. Pension Wise offers free government-backed guidance.