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Free FIRE Calculator (Financial Independence) Online

Calculate your FIRE number, years to financial independence, and safe withdrawal rate based on the 4% rule for early retirement planning. — 100% free online utility, zero sign-up, zero paywalls, and private client-side processing.

100% Client-Side0ms Latency
0ms Financial EngineIEEE-754 Precision Float
Future Value$31,058
Total Capital Profit$21,058
Initial Principal$10,000

How It Works

1

Enter Annual Expenses

Input your current annual living expenses (or target retirement expenses).

2

Set Portfolio Return & Savings Rate

Enter expected investment return and what percentage of income you save monthly.

3

Input Current Net Worth

Enter your current investable assets (investments + savings, excluding primary home).

4

View Years to FIRE

See your FIRE number, current progress percentage, and projected years to financial independence.

Frequently Asked Questions

Your FIRE number is 25× your annual expenses, based on the 4% safe withdrawal rate rule from the Trinity Study. At this corpus, you can withdraw 4% annually indefinitely.

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