FIRE Calculator — Financial Independence Retire Early

The 4% rule suggests you can safely withdraw 4% of your retirement portfolio in the first year, then adjust for inflation each year, with a high probability of the money lasting 30 years. This comes from the Trinity Study.

Lean FIRE means retiring with minimal expenses (often $40k/year or less). Regular FIRE maintains your current lifestyle. Fat FIRE means retiring with a luxurious lifestyle ($100k+/year). The calculator shows all three scenarios.