Retirement Calculator

Find out how much you will have when you stop working, what income it can pay and whether it covers the life you want — all in today’s money.

  • Up to age 100+
  • Inflation-adjusted
  • Balance by age
  • Private
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Results are shown in today’s money, so they stay comparable with your current spending.

Income in retirement

Both in today’s money. Leave the first field at 0 to see only what your savings can pay.

More options

How it works

How to plan your retirement savings

A few assumptions, a clear picture.

  1. 1

    Enter where you are now

    Your age, the age you want to retire, your savings so far and what you save each month.

  2. 2

    Set the assumptions

    Expected returns before and during retirement, inflation, and yearly increases of your saving.

  3. 3

    Compare with your target

    Enter the monthly income you want and any pension. The calculator shows the gap and the saving needed to close it.

Why ToolCMB

A plan you can actually read

No jargon, no future-money illusions.

Today’s money

Every result is adjusted for inflation, so you can compare it with what you spend now.

Income target

Enter the income you want and other pensions; see whether your savings cover the difference.

Closing the gap

If there is a shortfall, the calculator tells you how much more to save each month.

Realistic assumptions

Separate returns before and after retirement, plus yearly raises of your contribution.

Balance by age

A chart and table follow your savings through the saving years and the spending years.

Link to your calculation

Copy a link that reopens the calculator with your numbers filled in — handy for sharing or saving a scenario.

Made for phones

Large fields, the right keyboard for numbers and a layout that fits small screens.

Private by design

Everything is calculated in your browser. Your numbers are not sent to a server.

How much do you need to retire?

Retirement planning has two phases. While you work, savings accumulate: each contribution earns a return, and those returns earn returns in turn. After you retire, the pot is drawn down to pay an income while the remainder stays invested. This calculator projects both phases and reports everything in today’s purchasing power.

Inflation is the reason for showing today’s money. At 2.5 % inflation, prices double in about 28 years, so a nominal million in 2055 buys roughly what half a million buys today. Working in real terms keeps the result comparable with your current budget.

A common rule of thumb is the 4 % rule: a portfolio can historically sustain yearly withdrawals of about 4 % of its starting value, adjusted for inflation, for around 30 years. That means you need roughly 25 times the yearly income your savings must provide. It is a guide from past US market data, not a guarantee — real returns vary, and taxes and fees reduce them.

Savings needed for a monthly income (4 % rule)

Monthly income from savingsYearlySavings needed (× 25)
1,00012,000300,000
1,50018,000450,000
2,00024,000600,000
3,00036,000900,000
4,00048,0001,200,000

Tips

  • See how compounding alone grows a lump sum with the Interest Calculator.
  • Check what a price will be in the future with the Inflation Calculator.
  • Work out how much of your salary you can set aside with the Take Home Pay Calculator.
  • Use cautious returns: 4–6 % a year before inflation for a mixed portfolio is a common planning assumption, lower in retirement.
FAQ

Frequently asked questions

Can’t find your answer? Contact us — we reply quickly.

How much should I save for retirement?

A frequent guideline is 10–15 % of gross income over a full career, more if you start late. The calculator shows whether your current saving reaches the income you want.

What does “in today’s money” mean?

Amounts are reduced by expected inflation so they show what the money will actually buy. A balance of 1,000,000 in 30 years is worth about 477,000 in today’s money at 2.5 % inflation.

What is the 4 % rule?

A guideline from historical US data: withdrawing 4 % of your savings in the first year of retirement and adjusting that amount for inflation has usually lasted about 30 years. It is not a guarantee.

What return should I assume?

It depends on how the money is invested. Many planners use 4–6 % a year before retirement and 2–4 % afterwards, before inflation. Try a lower figure to see a cautious scenario.

Does the calculator include state pensions and taxes?

Enter expected pensions under “Pension and other income”. Taxes and investment fees are not modelled, so treat the result as an estimate before tax.

Are my numbers stored or sent anywhere?

No. The calculation runs in your browser. Your last inputs are remembered on your own device only, so the form is still filled in when you come back; use Reset to clear them.

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