FIRECalculatorHQ

FIRECalculatorHQ is a free financial independence calculator that covers the whole FIRE spectrum: Standard, Coast, Barista, Lean and Fat FIRE, plus a dedicated safe-withdrawal-rate tool for the 4% rule.

Enter your financial details and instantly see your FIRE number, years to early retirement, and exact retirement date. Adjust any input — salary, savings, expenses, or investment returns — and results update in real time. Free, runs in the browser, no signup.