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What is FIRE Number Calculator?
Enter your annual expenses, current savings, monthly contribution, expected return rate, and withdrawal rate — get your FIRE number and exactly how many years until you hit it. Built on the Rule of 25 / safe withdrawal rate framework. No account, no email, no signup. Opens instantly. Inputs: Annual expenses Current savings Monthly contribution Expected annual return (%) Withdrawal rate (3–5%) Output: your FIRE number + years to financial independence at your current savings rate.