All FIRE Calculators in One Place
Six free calculators covering every flavor of Financial Independence, Retire Early — pick the one that matches your lifestyle and run the numbers.
Traditional FIRE Calculator
$1M–$2M target · 25× expenses · Best for: Most people pursuing early retirement
The original FIRE: invest until 25× your annual expenses, then live off a 4% withdrawal rate. Simple, well-tested, fits most lifestyles.
Open calculatorLean FIRE Calculator
$750K–$1M target · $30–40K/yr · Best for: Frugal lifestyles, geographic arbitrage
Reach FIRE faster by minimizing expenses. Lower spending means a smaller portfolio — and an earlier retirement age.
Open calculatorCoast FIRE Calculator
Varies by age · stop saving to coast · Best for: Aggressive young savers, career flexibility
Front-load retirement savings, then stop. Compound growth carries you to a full FIRE number by traditional retirement age.
Open calculatorBarista FIRE Calculator
$500K–$750K + part-time work · Best for: Career changers, healthcare bridge needs
A hybrid: part-time work covers current expenses (and often health insurance) while your investments grow toward full FIRE.
Open calculatorFat FIRE Calculator
$2.5M+ target · $100K+/yr spending · Best for: High earners, luxury lifestyle in retirement
Early retirement without lifestyle constraints. Larger portfolio, higher target spending, more cushion against sequence-of-returns risk.
Open calculatorCouples FIRE Calculator
Combined target · joint contribution limits · Best for: Dual-income households
Joint planning: combine two incomes, shared expenses, and doubled tax-advantaged contribution room into one synchronized retirement plan.
Open calculatorHelpful Resources
Savings Rate Calculator
Years to FIRE based on your savings rate
4% Rule Calculator
Portfolio ↔ safe withdrawal, adjustable SWR
FIRE Number Calculator
Quick: monthly expenses → portfolio target
Early Retirement Calculator
Same engine as home, framed around retirement age
Financial Independence Calculator
Same engine, framed around independence (FI without RE)
Compare FIRE Types Side-by-Side
Targets, timelines, and trade-offs across all 6 strategies
FIRE Calculator by Age
Strategy guide for 20s, 30s, 40s, and 50s
Our Methodology
Assumptions, formulas, and data sources