Calculate when you can achieve financial independence and retire early. See your FIRE number, years to FIRE, and projected savings growth.
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FIRE (Financial Independence, Retire Early) is a movement focused on extreme savings and investment that allows people to retire far earlier than traditional retirement age. Our FIRE calculator helps you determine your target number and how long it will take to achieve financial freedom.
FIRE stands for Financial Independence, Retire Early. The core concept is accumulating enough investments to generate passive income that covers your living expenses indefinitely. The 'FIRE Number' is typically calculated as 25× your annual expenses (based on the 4% withdrawal rule), which historically provides sustainable income without depleting your principal.
FIRE Number Formula
FIRE Number = Annual Expenses × 25 (or Annual Expenses ÷ 4%)Know exactly how much you need to save for financial independence.
Monitor your journey and stay motivated with concrete milestones.
Make informed decisions about career, lifestyle, and savings rate.
Standard approach: save 25× expenses, withdraw 4% annually.
Minimal budget FIRE, typically under $40,000/year expenses.
Higher budget FIRE allowing for more luxurious retirement lifestyle.
Save enough early that compound growth covers retirement.
The 4% rule suggests withdrawing 4% of your portfolio annually in retirement. Based on the Trinity Study, this rate historically sustained portfolios for 30+ years. Adjust for longer retirements or market conditions.
Higher is better. At 10% savings rate, FIRE takes ~50 years. At 50% rate, ~17 years. At 70% rate, ~8 years. The math is powerful: each percentage point matters significantly.
Three levers: increase income, decrease expenses, or improve investment returns. Most effective is increasing savings rate by doing both—earning more and spending less simultaneously.
Generally no, unless you plan to sell it. Your FIRE number should cover expenses including housing costs. However, paying off your mortgage before FIRE reduces your required FIRE number.