Calculate retirement

Project a retirement pot from current savings and monthly contributions, then express it in nominal and today's money.

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ToolRetirement Calculator
Input
Output
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Preview

How it works

Current savings and end-of-month contributions compound monthly at the nominal return. Compound inflation discounts the final pot into today's purchasing power, while the Fisher relation calculates real return; 2.5% inflation and 4% withdrawal are editable scenarios rather than forecasts.

Formula
real return = (1 + nominal return) ÷ (1 + inflation) − 1
  • The displayed drawdown applies the selected percentage to the nominal pot at retirement.
  • Total contributions excludes investment growth, keeping deposits distinct from returns.

Worked example

20,000 now, 400 a month for 30 years
A 6% nominal return with 2.5% inflation
Input
											Current savings: 20000
Monthly contribution: 400
Years to retirement: 30
Nominal return percent: 6
Output
												Pot at retirement: 522257.52
Pot in todays money: 248982.45
Annual drawdown: 20890.3
Monthly drawdown: 1740.86
Real return percent: 3.41
Assumed inflation percent: 2.5
Assumed withdrawal rate percent: 4
Total contributions: 164000

When to use this

Workplace pension reviews, personal pension projections, and retirement-income scenarios compare deposits, compound returns, inflation, and a chosen withdrawal percentage.

Edge cases

  • At 0% nominal return, the future pot is current savings plus monthly contributions without using the annuity denominator.
  • When inflation exceeds nominal return, real return is negative and today's-money value falls relative to the nominal pot.
  • A horizon shorter than one month is rejected instead of rounding to zero contribution periods.

References