FatFIRE Calculator
Calculate FatFIRE Number
Plan for high-income retirement lifestyle
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Formula
FatFIRE Number = (Annual Spending × (1 + Inflation)^Years) ÷ 0.04
Frequently Asked Questions
What's the difference between FIRE and FatFIRE?
FIRE typically targets $30-50k/year spending. FatFIRE targets $100k-300k+/year. FatFIRE requires 2-5x larger portfolio but offers more lifestyle flexibility.
Is FatFIRE realistic?
Yes, many millionaires pursue FatFIRE. Requires income $150k+/year for 10-20 years, or significant inheritance/windfalls. Takes 15-25 years typical.
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