Calculadora de Número FIRE — Fórmula
## FIRE Number
**FIRE Number = Annual Expenses / Withdrawal Rate**
At a 4% withdrawal rate: **FIRE Number = Annual Expenses x 25**
Once your investment portfolio equals your FIRE number, you can theoretically live off the returns indefinitely.
### FIRE Variants
| Type | Expenses | Multiplier |
|---|---|---|
| Lean FIRE | <$40k | x25 |
| Regular FIRE | $40-80k | x25 |
| Fat FIRE | >$80k | x25 |
**FIRE Number = Annual Expenses / Withdrawal Rate**
At a 4% withdrawal rate: **FIRE Number = Annual Expenses x 25**
Once your investment portfolio equals your FIRE number, you can theoretically live off the returns indefinitely.
### FIRE Variants
| Type | Expenses | Multiplier |
|---|---|---|
| Lean FIRE | <$40k | x25 |
| Regular FIRE | $40-80k | x25 |
| Fat FIRE | >$80k | x25 |
Ejemplo Resuelto
$40,000 annual expenses, 4% withdrawal rate, $200,000 saved.
- FIRE number = $40,000 / 0.04 = $1,000,000
- Progress = $200,000 / $1,000,000 = 20%
- Remaining = $1,000,000 - $200,000 = $800,000