Free Early Retirement FIRE Calculator 2026
FIRE (Financial Independence, Retire Early) is a movement built on saving aggressively — typically 50-70% of income — to retire decades before the traditional age of 65. The core rule: your FIRE number = annual expenses × 25. If you spend $40,000/year, you need $1,000,000 saved to retire safely, withdrawing 4% per year indefinitely (the 4% Safe Withdrawal Rate). Calculate your FIRE number and retirement date here. No sign-up required — your data never leaves your browser. Works instantly on desktop, tablet, and mobile. Completely free with no daily usage limits, no watermarks, and no account needed. Trusted by students, professionals, and businesses worldwide. FixFlowHub is a browser-based toolbox with 120+ free utilities covering PDF, image, text, calculator, and productivity tools.
Frequently Asked Questions
What is the 4% rule for retirement?
The 4% rule states that you can safely withdraw 4% of your retirement portfolio per year without running out of money over a 30+ year retirement. This is based on the Trinity Study, which tested withdrawal rates against historical market returns. Your FIRE number = annual expenses ÷ 0.04 = annual expenses × 25.
How much do I need to retire early at 40?
To retire at 40 with $50,000/year in expenses, you need $1,250,000 saved (50,000 × 25). To retire at 40 with $80,000/year expenses, you need $2,000,000. The exact amount depends on your spending, investment returns, and Social Security eligibility age (62 minimum for early benefits).