FireDate runs the real math: your FIRE number based on desired retirement spending and safe withdrawal rate, a full compound growth simulation adjusted for real inflation, and your exact Financial Independence Date. What it does: 🌅 Your exact Financial Independence Date — calculated, not estimated 💰 FIRE number calculator — spending ÷ withdrawal rate 📊 Withdrawal rate comparison — 3%, 4%, 5% side by side 📈 Real (inflation-adjusted) growth simulation — not just nominal returns