6 LIVE
FIRE & early retirement

When can I stop working, and how much is enough?

Your FIRE number and the year you reach it, plus the Coast, Barista and Lean variations. Every tool starts from your seven numbers.

FI age47
FI number$1.50M
Success80%
Σ
The formula, always
Equation, worked example with your numbers, assumptions listed.
[1]
Primary sources, cited
IRS, Federal Reserve, BLS, Shiller. Dated and linked on every page.
0
Gates
No login, no email wall, no submit button. The app is offered, never required.
✓ Determining Withdrawal Rates Using Historical Data · Bengen, Journal of Financial Planning, 1994✓ The Theory of Interest · Irving Fisher, Macmillan, 1930 (real versus nominal interest)✓ Consumer Expenditure Surveys, Table 1300. Age of reference person, 2024 · U.S. Bureau of Labor Statistics✓ PPP conversion factor, private consumption (LCU per international $), PA.NUS.PRVT.PP · World Bank, International Comparison Program✓ Determining Withdrawal Rates Using Historical Data · Bengen, Journal of Financial Planning, 1994✓ The Theory of Interest · Irving Fisher, Macmillan, 1930 (real versus nominal interest)✓ Consumer Expenditure Surveys, Table 1300. Age of reference person, 2024 · U.S. Bureau of Labor Statistics✓ PPP conversion factor, private consumption (LCU per international $), PA.NUS.PRVT.PP · World Bank, International Comparison Program