RETIREMENTCALCULATOR (UK)

Estimate your pension pot and annual retirement income. Includes State Pension, employer contributions, and inflation-adjusted projections.

Your Details

Contributions

Combined annual contribution: £3,600

Rates & Assumptions

What is this calculator actually showing you?

It's giving you a projection — a best guess of what your pension pot might look like by the time you retire, and how much annual income that could support. It's not a guarantee and it's not financial advice. But it's a genuinely useful reality check. The UK pension system has three main layers. The State Pension (up to £11,502/year) is the foundation, paid from age 66. On top of that most people have workplace pensions — money you and your employer both put in, invested over decades. Then there's anything else you've saved personally, whether ISAs, property, or other investments. This calculator focuses on the workplace and personal pension piece and adds the State Pension on top.

How to get a useful number out of this

The golden rule: be honest with your inputs. An optimistic growth rate and low inflation assumption will give you a big number that feels good but might not materialise.

01

Your age and target retirement age

These two numbers determine your runway. The longer it is, the more powerful compounding becomes. Even 5 extra years of contributions can add significantly to your final pot.

02

What you've already got

Include your current pension pot value. If you have multiple old workplace pensions you've lost track of, check the government's Pension Tracing Service — you might have more than you think.

03

Your contributions

Enter both your own contribution percentage and your employer's. If you're not sure, check your payslip or your pension provider's portal. This is often the biggest lever you can pull.

04

Growth rate and inflation

We'd suggest using 5% real growth as a conservative baseline for a diversified pension — that's roughly what a balanced fund has returned historically after charges. Set inflation around 2.5% to see your pot's buying power in today's money.

05

State Pension and withdrawal rate

Get your actual State Pension forecast from gov.uk — don't guess. For withdrawal rate, 4% is the standard starting point, but the calculator lets you adjust this.

How the projection is calculated

FV = PV × (1+r)^n + PMT × [(1+r)^n - 1] / r

FV is your projected retirement pot, PV is your current pot, r is the annual growth rate, n is years until retirement, and PMT is your annual contribution. The result is then adjusted for inflation to show you what that pot is worth in today's money. Annual income = pot × withdrawal rate + State Pension. It's the same underlying maths used by pension providers and financial planners — just made transparent.

Tips & Best Practices

  • If your employer offers any matching and you're not getting the full amount, increase your contributions today — it's the closest thing to free money in personal finance

  • Salary sacrifice reduces your taxable income and your National Insurance — it's almost always better than paying into a pension post-tax

  • Don't ignore old pensions from previous jobs. The average UK worker has 11 employers in their lifetime — you may have forgotten pots sitting doing nothing

  • Check your State Pension forecast at gov.uk/check-state-pension. If you have gaps, buying extra years can give incredible value — especially in the decade before retirement

  • Reassess every time your income increases. When you get a pay rise, bumping your pension contribution even slightly means your lifestyle doesn't inflate as fast as your earnings

Frequently Asked Questions

MD

Mandeep Singh · 25+ Years UK Financial Services

Important Information

This calculator is for informational purposes only and does not constitute financial advice, a personal recommendation, or an offer to buy or sell any investment or asset class.

Projected figures are illustrative estimates based solely on the inputs you provide. Returns are not guaranteed and actual outcomes will differ.

Past performance is not a guide to future performance, nor a reliable indicator of future results.

If you are unsure about the suitability of any investment or savings strategy for your circumstances, you should seek independent advice from a qualified financial adviser.

MD

Mandeep Singh · 25+ Years UK Financial Services

Important Information

This calculator is for informational purposes only and does not constitute financial advice, a personal recommendation, or an offer to buy or sell any investment or asset class.

Projected figures are illustrative estimates based solely on the inputs you provide. Returns are not guaranteed and actual outcomes will differ.

Past performance is not a guide to future performance, nor a reliable indicator of future results.

If you are unsure about the suitability of any investment or savings strategy for your circumstances, you should seek independent advice from a qualified financial adviser.

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