FIRE Number Calculator: Work Out the Numbers First
Money choices feel clearer with numbers in front of you. This calculator turns a few inputs into a simple estimate you can compare and plan around.
What is the FIRE Number Calculator?
The FIRE number divides yearly spending by a safe withdrawal rate, commonly 4 percent, giving the portfolio size that could in theory fund that spending indefinitely. All figures here are estimates: check current rules and rates before acting on them.
How to use it
- Enter your numbers.
- Check that each figure looks right.
- Click Calculate FIRE Number and read the result.
Worked example
With $30,000 annual spending and a 4% withdrawal rate, the estimated FIRE number is $750,000.
What is my FIRE number on $30,000 yearly spending?
Divide $30,000 by 4 percent to get $750,000 as an estimate.
Frequently asked questions
Are these figures exact?
No. They are estimates based on the numbers you enter. Rules, rates, and charges change, so check current rules before making a financial decision.
What should I do with this estimate?
Use it to compare options and plan your next step, then confirm the final figure with the provider, lender, or adviser involved before committing money.