FIRE Engine is a free calculator built to make one of the most important numbers in personal finance easy to see: the age you could reach financial independence and retire early.
We turn a handful of inputs — your net worth, income, expenses, expected return, and withdrawal rate — into a clear projection: your FIRE number, your savings rate, and a year-by-year chart of your net worth compounding toward the finish line. No spreadsheets, no sign-up, no jargon.
The calculator runs entirely in your browser. The financial details you enter never leave your device and are never sent to a server. We believe a tool that handles sensitive money questions should respect your privacy by default.
Our projections are intentionally simple and transparent so you can understand every assumption. They do not replace personalized advice from a qualified financial professional, and real-world results are affected by taxes, inflation, fees, and market timing. Use FIRE Engine as a starting point for planning and conversation, not as a guarantee.
Open the FIRE CalculatorFeedback, corrections, or partnership questions? Reach us at rocketwebtools1@gmail.com.