🔥 FIRE Lab
When can you stop working? Run the numbers — instantly, privately, in your currency.
FIRE number
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FIRE in
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At age
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How this works
All amounts are in today's money: growth uses your expected return minus inflation (real return), compounded monthly with your contributions (dollar-cost averaging). Your FIRE number is annual spending ÷ withdrawal rate — the classic 4% rule when the rate is 4%.
🌱 Coast FI: the pot that reaches your FIRE number by age 65 with zero further contributions. 🥬 Lean FI: 70% of your spending. 👑 Fat FI: 150% of it.
Estimates for planning fun only — not financial advice. Nothing you type leaves this page.