Online Financial & Investment Calculators
Fire Number Calculator
What Is FIRE?
FIRE (Financial Independence, Retire Early) is a movement focused on aggressive saving and investing to retire decades before the traditional age of 65. The core idea: save 50-70% of your income, invest in low-cost S&P 500 index funds, and build a portfolio 25x your annual expenses (the 4% rule). Many Americans achieve FIRE in their 30s or 40s using 401(k)s, Roth IRAs, and taxable brokerage accounts.
The 4% Rule Explained
The 4% rule, based on the Trinity Study, states that withdrawing 4% of your portfolio annually (adjusted for inflation) has a high probability of lasting 30+ years. For example, if you spend $4,000/month ($48,000/year), your FIRE number is $1,200,000. This calculator helps you see how long it will take to reach your number.
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