FIRE Number Calculator

Use this FIRE number calculator to estimate how much money you may need to reach financial independence or retire early.

What Is a FIRE Number?

Your FIRE number is the amount of invested assets you may need to cover your annual expenses without relying on traditional employment income.

How the Calculation Works

A common rule of thumb is to divide annual expenses by your planned withdrawal rate. For example, with a 4% withdrawal rate, the formula is annual expenses multiplied by 25.

Example

If your annual expenses are $40,000 and you use a 4% withdrawal rate, your estimated FIRE number would be $1,000,000.