Question 1

What is the FIRE number?

Accepted Answer

Your FIRE number is the amount you need invested to retire permanently: Annual Expenses / Withdrawal Rate. At the 4% rule it is 25x annual expenses. To spend $50,000/year in retirement you need $1,250,000 invested.

Question 2

What are the different types of FIRE?

Accepted Answer

Lean FIRE: $25,000-$40,000/year in retirement, FIRE number $625,000-$1M. Standard FIRE: $40,000-$80,000/year, FIRE number $1M-$2M. Fat FIRE: $80,000-$200,000+/year, FIRE number $2M-$5M+. Barista FIRE: partially retire, work part-time. Coast FIRE: save enough early that investments grow to FIRE number by retirement.

Question 3

What savings rate do I need to retire early?

Accepted Answer

Saving 10% takes about 43 years. Saving 25% takes about 32 years. Saving 50% takes about 17 years. Saving 70% takes about 8.5 years. A high savings rate both accelerates portfolio growth and reduces your FIRE number.

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