Pension Pot Projections
The AI Pension Calculator projects retirement savings from your current pension savings, contributions and expected returns, up to your planned retirement age.
Free AI Pension Calculator
Calculate your estimated pension pot and retirement income using your current savings, monthly contributions and planned retirement age. Adjust investment returns, fees and inflation to see how much income your savings could provide and how long your pension may last. No signup required, no downloads needed.
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Why Use Our AI Pension Calculator?
Monthly Retirement Income Estimates
The estimate shows the highest monthly income your projected pot could pay until the age you choose, and how long your desired income would last.
Personal and Employer Contributions
Separate fields for your own and your employer’s monthly pension contributions show how each adds to the pot.
Investment Growth and Fees
Annual investment returns and annual fees are separate inputs, so you can see how much a charge reduces growth over the years.
Inflation-Adjusted Withdrawals
An inflation assumption raises your withdrawals each year of retirement, showing whether your income keeps its purchasing power.
Retirement Scenario Comparisons
Results update as you change any input. The tool shows one scenario at a time, and a share link saves each one for comparison.
How Does the AI Pension Calculator Work?
Enter your pension savings and contributions
Choose a display currency, then enter your current age, current pension savings, your monthly contribution and your employer’s monthly contribution.
Set your retirement age and assumptions
Set your planned retirement age and the monthly income you want, before tax. Open Options to change investment returns before and during retirement, annual fees, inflation and the age your income should last until.
Calculate your pension pot and income
Press Calculate outcome. The calculator projects your pot to retirement, then simulates monthly withdrawals, using fixed formulas and rules rather than a machine-learning model.
Review results and compare scenarios
Read the status message, the balance chart and the breakdown. Change any input to test an alternative, or copy the link to keep a scenario.
The “AI” in the name refers to automated calculation. Fixed formulas produce every figure, and one insight is chosen by fixed rules. The calculator does not predict market returns or give personal financial advice.
What Can You Calculate?
A pension pot represents accumulated savings, while pension income represents withdrawals from those savings. A pension forecast is an estimate based on your inputs and assumptions, so each result below depends on what you enter.
Projected pension pot at retirement
The projected pot is the estimated value of your retirement savings at your planned retirement age. It is built from current savings, monthly contributions, the annual investment return and annual fees. The pot is shown in future money and is not adjusted for inflation.
Estimated monthly retirement income
The sustainable income is the highest starting monthly withdrawal that your projected pot can pay until the plan-until age. It depends on the pot, the return in retirement, fees and inflation, and it is before tax.
Income duration
Years income lasts shows how long your desired monthly income could be paid before the pot runs out, together with the age it runs out. If the pot lasts beyond your plan-until age, the result is reported as sustainable.
Contributions versus investment growth
The breakdown separates what you contribute, what your employer contributes and investment growth. It shows how much of the final pot depends on returns, which are uncertain, and how much comes from contributions.
Inflation-adjusted withdrawals
Your desired income is treated as the amount you want in the first year of retirement. It then rises once a year by the inflation assumption, so a higher rate drains the pot faster and shortens the income duration.
Retirement income shortfall
A shortfall is the gap between your desired income and the sustainable income. The result also shows the pot needed for your desired income, so you can compare the projected pot with the savings required.
How Are Pension Estimates Calculated?
The calculation has two phases: accumulation before retirement and drawdown after it. Both phases use monthly steps.
Accumulation before retirement
Accumulation projects the pot from today until your planned retirement age. Each month the balance grows by the net monthly rate, then your contribution and your employer’s contribution are added at the end of the month. Contributions stay level; the calculator does not raise them each year.
Investment fees
Annual fees are subtracted from the annual return before compounding. The net monthly rate is(1 + (return − fee) / 100)^(1/12) − 1, so a 6% return with a 0.75% fee compounds at 5.25% a year.
Drawdown after retirement
Drawdown withdraws your desired income at the start of each month, then grows what remains at the retirement return minus fees. The calculator checks when, if ever, the pot cannot pay a full month.
Inflation-linked withdrawals
Withdrawals rise once a year by the inflation assumption, so the income in year n is the first-year income × (1 + inflation)n−1. Your desired income is treated as the amount for the first year.
The planning end age
The plan-until age is the age your income should last until. The sustainable income is found by searching for the highest whole-number monthly amount that still lasts to that age.
Pension Calculation Example
Sam is 40, plans to retire at 65 and has $80,000 saved. Sam pays in $600 a month and the employer adds $300. Sam would like $3,500 a month, and wants it to last until 90. The assumptions are 6% growth before retirement, 4% in retirement, 0.75% fees and 2.5% inflation.
| Savings today | $80,000 |
|---|---|
| Contributions (you + employer) | $600 + $300 a month |
| Projected pot at 65 | $833,803 |
| Paid in by you and your employer | $270,000 |
| Investment growth | $483,803 |
| Desired income | $3,500 a month |
| Drawdown rate | 5% |
| Sustainable income to age 90 | $3,073 a month |
| Pot needed for the desired income | $949,396 |
At $3,500 a month, Sam’s money may last about 21.7 years, until age 86.7. The pot could support $3,073 a month until 90, so the plan falls short by $427 a month. Sam would need a pot of about $949,396.
Retiring 2 years later would raise your sustainable income to $3,765 a month.
This is an illustration based on assumed figures, not a prediction.
Who Can Benefit From an AI Pension Calculator?
Early-Career Retirement Planning
Early-career savers can see how small monthly contributions have decades to grow, and how raising them now changes the projected pot.
Mid-Career Pension Reviews
Mid-career pension reviews help savers assess whether their current contributions and projected savings align with their intended retirement age.
Planning for Retirement
People close to retirement can test whether their pot supports the income they want, and how long it may last to a chosen age.
Comparing Retirement Scenarios
Anyone weighing a later retirement age, higher contributions or different return assumptions can see each change in the results.
What Affects Your Pension Estimate?
Each factor below changes the result in the way shown, assuming the other inputs stay unchanged.
| Input | Effect on your estimate |
|---|---|
| Current pension savings | A larger starting balance has more years to compound, which raises the projected pot. |
| Monthly pension contributions | Your contribution and your employer’s contribution increase the amount added to the pot each month and earn returns afterwards. |
| Planned retirement age | A later retirement age provides more years of contributions and growth and fewer years of income to fund. |
| Expected investment returns | Higher returns raise the pot before retirement and slow the drain on it during retirement. |
| Annual fees | Fees are subtracted from the return, so a higher fee reduces both the pot and the sustainable income. |
| Expected inflation rate | Higher inflation raises the withdrawals each year, which shortens the income duration. |
| Desired income and plan-until age | A higher desired income or a later plan-until age needs a larger pot and widens any shortfall. |
Pension Drawdown and Retirement Income
Pension drawdown means withdrawing income from your pension pot while the rest stays invested. The drawdown rate is your yearly income as a percentage of the pot: taking $30,000 a year from a $750,000 pot is a rate of 4%.
Fixed withdrawal percentage versus the modelled calculation
A fixed withdrawal percentage takes the same share of the starting pot each year, usually adjusted for inflation. The 4% rule is a historical planning heuristic based on past US market data, where about 4% lasted around 30 years. It is not a guaranteed safe rate, and a retirement longer than 30 years may need a lower one.
The calculator works differently. It simulates withdrawals month by month using your return, fees and inflation, then finds the highest income that lasts to your plan-until age. It assumes a constant return, so it does not model market falls or the order in which returns arrive. The result shows your own drawdown rate for comparison.
Ways to make pension savings last longer
- Retire a little later, which adds contributions and shortens the period you draw income.
- Increase monthly contributions early, when they have the longest time to grow.
- Check annual fees, since a 0.5% yearly difference adds up over decades.
- Start with a lower income and review it each year.
- Subtract other income, such as a state pension, from the income you need from your pot.
- Test cautious return assumptions to see how much margin the plan has.
Frequently Asked Questions
What is AI Pension Calculator?
AI Pension Calculator is a free online tool that estimates a pension pot and retirement income from the figures you enter. “AI” here means automated calculation with rule-based insights. The tool does not use a machine-learning model, and the term does not make the estimates more accurate.
How does AI Pension Calculator work?
AI Pension Calculator projects your savings to retirement age using monthly compound growth, then simulates monthly withdrawals that rise with inflation. It reports how long the money lasts and the highest sustainable income. One short insight is chosen by fixed rules based on your result.
How much pension will I receive?
Your estimated retirement income depends on accumulated savings, withdrawal assumptions and the number of years the income must last. You can use aipensioncalculator.com to see the highest monthly income your projected pot could pay until your plan-until age. The estimate excludes state pensions, tax and defined benefit entitlements.
How much pension do I need to retire?
The pension pot you need depends on the income you want, how long it must last and what else you will receive. Desired retirement income determines the required savings, and the results show the pot needed under your assumptions so you can compare it with your projected pot.
How do monthly pension contributions affect my pension?
Monthly pension contributions increase the amount added to your retirement savings, and each payment then earns investment returns until retirement. Raising your own or your employer’s contribution raises the projected pot. The breakdown shows contributions and investment growth separately.
How does retirement age affect my pension estimate?
Retirement age determines the contribution period and the number of years your income must last. A later retirement age provides more years for contributions and investment growth and fewer years of income to fund, so the sustainable income generally rises when other inputs stay the same.
How does inflation affect future pension income?
Inflation reduces future purchasing power, so the calculator raises your withdrawals by the inflation assumption each year of retirement. This keeps your income’s buying power but drains the pot faster. Testing several inflation rates shows how sensitive your result is.
What is the difference between a pension pot and pension income?
A pension pot is the total value of your accumulated retirement savings, while pension income is the money withdrawn from it. AI Pension Calculator projects the pot first, then estimates the income that pot could sustain. It does not model annuities or lump sums.
Does AI Pension Calculator include employer pension contributions?
Yes. Enter your employer’s monthly pension contribution in its own field, and it is added to your own contribution when the pot is projected. The breakdown reports both totals separately. Enter zero if your employer does not contribute.
Does the calculator include state pension, Social Security or tax?
No. The calculation uses only the savings and contributions you enter, and the results are before tax. If you expect a state pension or Social Security, subtract it from your desired income and enter the remainder. Tax relief and tax-free amounts are not modelled.
Does the calculator work for defined benefit pensions?
No. The calculator models a savings pot that grows with contributions and investment returns, as in defined contribution pensions and similar retirement accounts. Defined benefit pensions pay an income set by a scheme formula, so those figures must come from your scheme.
What is a safe pension drawdown rate?
Pension drawdown converts savings into income, and many people use about 4% of the starting pot per year as a historical planning guideline. It is not a guaranteed safe rate, because returns, fees, inflation and retirement length vary. The drawdown section above explains how the modelled calculation differs.
How accurate are pension calculator estimates?
A pension forecast depends on user assumptions, so it is only as reliable as those inputs. Real returns, inflation, fees and contributions vary from year to year, and actual outcomes will differ. AI Pension Calculator provides estimates from financial formulas and does not guarantee future investment returns.
Is AI Pension Calculator free to use?
Yes. aipensioncalculator.com is free and needs no account. Every calculation runs in your browser and nothing you enter is sent to a server. Only your chosen currency is remembered on your device. The share link stores your inputs in the web address, so share it with care.
Calculate Your Estimated Pension Income
Estimate your future pension using your savings, contributions and retirement assumptions. Review your projected results and explore how changes to your retirement plan may affect your estimated income.