Retirement Planner
Project your retirement pot and estimated monthly income based on your current savings and contributions.
Your Details
Projected Retirement Pot
£622,709
Est. Monthly Income (4% rule)
£2,076/mo
Years to Retirement
30 yrs
Total Contributions
£180,000
Investment Growth
£422,709
Planning for Retirement
Retirement planning is one of the most important financial decisions you will make. The earlier you start, the more time compound interest has to work in your favour — meaning you need to contribute less of your own money to achieve the same outcome.
This calculator uses compound interest to project the growth of your pension pot over time, then applies the widely used 4% rule to estimate your monthly income in retirement. The 4% rule suggests that withdrawing 4% of your portfolio per year gives a high probability of your money lasting 30 years or more.
In the UK, your retirement savings may include a workplace pension, a personal pension (SIPP), ISAs, and the State Pension. The State Pension (currently around £11,500 per year for the full new State Pension) is not included in this calculator — add it to your estimated monthly income for a complete picture.
The expected annual return you enter should reflect your investment strategy. A diversified equity portfolio has historically returned around 6–8% per year before inflation. A more conservative mixed portfolio might return 4–5%. Always consider inflation when planning — a 6% nominal return with 3% inflation gives a real return of approximately 3%.
Frequently Asked Questions
What is the 4% rule?
The 4% rule states that you can withdraw 4% of your retirement portfolio each year and have a high probability of not running out of money over a 30-year retirement. It is a guideline, not a guarantee.
How much should I save for retirement?
A common rule of thumb is to save 10–15% of your gross income for retirement. The earlier you start, the lower this percentage needs to be due to compound growth.
Should I include my State Pension?
This calculator does not include the State Pension. The full new UK State Pension is approximately £11,500 per year (2024/25). Add this to your projected monthly income for a complete picture.
What return rate should I use?
For a diversified equity portfolio, 6–7% is a reasonable long-term assumption. For a more conservative mixed portfolio, use 4–5%. Always adjust for inflation if you want real returns.