Fat FIRE Number for $100,000 Annual Expenses
With $100,000 in annual retirement expenses at a 4% withdrawal rate, your Fat FIRE number is $2,500,000.
How to use this tool
- Enter annual expenses in retirement, safe withdrawal rate, current savings / investments, annual contribution and expected annual return in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your fire number needed and the full breakdown beneath it.
Find out when you can achieve Fat FIRE when you plan to spend $100,000 per year with a comfortable early retirement lifestyle.
Frequently asked questions
- What is the 4% rule?
- The 4% rule, derived from the Trinity Study, suggests you can withdraw 4% of your initial retirement portfolio per year (adjusted for inflation) with a high probability that your money lasts 30+ years.
- Can I use a different withdrawal rate?
- Yes. More conservative retirees use 3% or 3.5% (higher FIRE number). Those with other income sources or flexible spending may use 5%. Adjust the safe withdrawal rate field accordingly.