FIRE Number
Everyone in this community talks about “hitting their number” — but what actually is it, and how do you calculate yours?
What Is It
Your FIRE number is the total amount you need invested to sustain your desired lifestyle without earning another paycheck. It’s not a universal figure — it’s personal, calculated from your own annual expenses and the withdrawal rate you’re comfortable with: expenses divided by withdrawal rate, or expenses multiplied by 25 if you’re using the standard 4% rate.
Why It Matters
This is the number that turns “financial independence” from an abstract goal into something you can actually track progress toward. It’s also worth remembering it’s not fixed: change your assumed withdrawal rate, and your FIRE number changes with it — a more conservative 3.5% rate means a bigger number than an optimistic 4.7% one, for the exact same lifestyle. (See Safe Withdrawal Rate for how that choice plays out.)
Quick Example
If you spend $50,000 a year, your FIRE number at the standard 4% rate is $1,250,000 — the same $50,000 divided by 4%, or multiplied by 25. Spend $80,000 instead, and the number jumps to $2,000,000. The relationship is direct: cut your expenses, and your target shrinks right along with it.
Try It Yourself
Your FIRE number tells you where you’re headed — your savings rate determines how fast you actually get there. See how yours stacks up.
📊Savings Rate Calculator
See how your current savings rate translates into a real timeline for hitting your FIRE number.