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FIRE Number Calculator

Your FIRE number is the amount of invested money that lets you live off withdrawals forever, the core target of the Financial Independence Retire Early movement. It is based on the 4 percent rule, which says a portfolio can safely support annual spending equal to about 4 percent of its value, so your target is your yearly expenses divided by your withdrawal rate. Enter your annual spending, choose a safe withdrawal rate, and add your current savings, monthly contributions, and expected return to see both your FIRE number and how many years it will take to get there. Adjust the withdrawal rate down for a more conservative plan. Every calculation happens locally in your browser, so your finances stay entirely on your device.

How to use FIRE Number Calculator

  1. Enter your annual expenses.
  2. Set your withdrawal rate or use the 4 percent default.
  3. Read your FIRE number and years to reach it.

Frequently asked questions

What is a FIRE number?

It is the amount you need invested so that safe withdrawals cover your yearly spending. It is the target for financial independence.

How does the 4 percent rule set the number?

The tool multiplies your annual expenses by 25, the inverse of a 4 percent withdrawal rate, to estimate the portfolio you need.

Can it show years to reach the number?

Yes. Using your savings and expected return, it projects how long it takes your invested balance to reach the FIRE target.

What is FIRE Number Calculator?

Your FIRE number is the amount of invested money that lets you live off withdrawals forever, the core target of the Financial Independence Retire Early movement. It is based on the 4 percent rule, which says a portfolio can safely support annual spending equal to about 4 percent of its value, so your target is your yearly expenses divided by your withdrawal rate.

Is FIRE Number Calculator free to use?

Yes. FIRE Number Calculator is completely free, with no sign-up and no usage limits.

Does FIRE Number Calculator work in a web browser?

Yes. FIRE Number Calculator runs in any modern web browser. There is nothing to download or install.

Is my data private with FIRE Number Calculator?

Yes. FIRE Number Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.