Retirement Calculator

Will your savings be enough? This calculator projects your current retirement balance plus ongoing monthly contributions forward to your target retirement age, then estimates the monthly income that nest egg could sustainably generate using a withdrawal-rate rule. It is a planning estimate - not a guarantee - but it turns an abstract worry into concrete numbers you can act on.

Your numbers

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yrs
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$
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Advanced: inflation
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Projected nest egg — at retirement
Monthly retirement income—
Annual retirement income—
Years until retirement—
Total you'll contribute—
Investment growth—
Monthly income in today’s money—
ContributionsGrowth

Results update as you type and are estimates for education only — they don't account for taxes, fees or your personal situation, and nothing here is financial advice. Your inputs stay on this device.

How it works

  1. Enter your current age, planned retirement age and what you have saved for retirement so far.
  2. Add your monthly contribution (include any employer match - it is part of your savings rate).
  3. Set an expected annual return before retirement; diversified portfolios have historically averaged 7-10% nominal over long periods.
  4. Review your projected nest egg and the estimated sustainable monthly income at your chosen withdrawal rate (4% is the classic starting assumption).

The formula

Nest egg = current savings compounded monthly to retirement + future value of monthly contributions. Sustainable annual income = nest egg x withdrawal rate (e.g. 4%), divided by 12 for a monthly figure.

Frequently asked questions

How much do I need to retire?
A common rule of thumb is 25 times your expected annual spending in retirement, which corresponds to a 4% initial withdrawal rate. Someone spending 40,000 a year would target roughly 1,000,000 - adjusted for pensions, state benefits and personal circumstances.
What is the 4% rule?
Research on historical US market data found that withdrawing 4% of a balanced portfolio in the first retirement year, then adjusting that amount for inflation annually, survived nearly every 30-year period tested. It is a planning benchmark, not a law - many planners now model 3-5% depending on age, market valuations and flexibility.
Does this include Social Security or state pensions?
No - it projects only your invested savings. Treat government benefits (US Social Security, UK State Pension, EU national schemes) as income that reduces how much your portfolio must generate, and subtract them from your target monthly income before comparing.
I am behind on retirement savings. What actually moves the needle?
In order of impact: raising your savings rate, capturing every unit of employer match, delaying retirement by even 2-3 years (more growth, fewer withdrawal years), and keeping investment fees low. Chasing higher returns through concentrated bets is the least reliable lever.
Keep planning

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