Plan early retirement with our FIRE calculator. Find your FI number, savings rate, and retirement timeline. Updated 2026.
Assumes constant return rate. Does not account for inflation, taxes, or Social Security. For illustrative purposes only.
FIRE (Financial Independence, Retire Early) is built on a simple but powerful principle: the higher your savings rate, the faster you can retire. If you save 50% of your income, you're consuming 50% — meaning your working years fund your retirement roughly 1:1. At a 75% savings rate, every working year covers 3 years of retirement.
The FIRE number is typically 25–33x your annual expenses (the inverse of the 3–4% withdrawal rate). If you spend $40,000/year, your FI number is $1,000,000–$1,333,000. Every dollar you cut from spending reduces your FI number by $25–$33 AND speeds up how fast you accumulate savings. Reducing spending is doubly powerful.
Different FIRE variations suit different goals: Lean FIRE targets $500K–$1M for a frugal lifestyle. Regular FIRE targets $1–2.5M for a middle-class lifestyle. Fat FIRE targets $2.5M+ for a comfortable lifestyle without major compromises. Barista FIRE involves partial work (e.g., part-time/freelance) to reduce portfolio withdrawal pressure.
Early retirees face unique challenges that don't affect traditional retirees: penalties on retirement account access before 59½ (mitigated by Roth conversion ladders and SEPP 72(t)), decades without Medicare (ACA income management is critical), and the psychological challenge of a 40+ year retirement without traditional work structure.
The Roth conversion ladder is a key FIRE strategy: convert traditional IRA/401(k) funds to Roth over 5 years while managing income below subsidy cliffs, then withdraw the converted amounts penalty-free after the 5-year seasoning period. This allows access to retirement funds well before 59½ without penalties.
Your FIRE number is 25x your annual expenses (based on the 4% rule). Spend $50,000/year → need $1.25 million. Spend $60,000/year → need $1.5 million. The 3.5% rule gives a more conservative target: 28.5x expenses. Reduce expenses to reduce your FIRE number and retirement date simultaneously.
Several strategies work: (1) Roth conversion ladder — convert traditional funds to Roth, wait 5 years, withdraw contributions tax and penalty free; (2) Rule of 55 for 401(k) if you leave your job at 55+; (3) SEPP 72(t) — take substantially equal periodic payments from an IRA; (4) Use taxable brokerage accounts for the first few years while Roth ladders season.
Most FIRE practitioners save 40–70% of take-home income. At a 50% savings rate, you reach FI in roughly 17 years regardless of income level. At 25%, it takes about 32 years. At 70%, roughly 8.5 years. The math is rate-dependent, not income-dependent — frugality accelerates FIRE more than income.