📘 Prerequisite Guide: Looking for the mathematical theory behind the 4% rule, the Trinity Study, savings rate dynamics, and Lean vs. Fat FIRE? Read the prerequisite guide: The Complete Guide to FIRE: Financial Independence, Retire Early Explained.
FIRE Trajectory Calculator
Real-time inflation-adjusted compounding projection Target FIRE Number
$1,200,000
(25x Annual Expenses) Time to Freedom
17.1 Years
Target Year: 2043 Retirement Age
Age 47
Current: 4.2% Funded Progress Toward Goal 4.2%
Lean FIRE (75% budget)
$900,000
~14.5 yrs to reach Standard FIRE (100% budget)
$1,200,000
~17.1 yrs to reach Fat FIRE (150% budget)
$1,800,000
~21.2 yrs to reach