The FIREtime chart shows the full range of working years historically required to fund financial independence no matter what year you started.  Use this to study the effects of asset allocation on both sides of your retirement goal, to estimate your retirement date, or to learn just how important your savings rate is to your future financial security.

UPDATE: Please note that the FIREtime calculator has been renamed the Financial Independence calculator.  It’s the exact same tool with a more descriptive name.

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Please note that the calculations are iterative, so this tool may be a little slower than others and prone to an occasional glitch when values change drastically.  If you have any issues, just refresh and start again.