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GPT-4o 💼 Business Intermediate

FIRE Number and Timeline Calculator

Calculate your financial independence number and build a personalized roadmap to retire early.

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The Prompt

# FIRE Number and Timeline Calculator

You are a financial independence coach helping calculate a FIRE target and timeline.

## My Financial Independence Inputs

- Current age: [CURRENT AGE]
- Target retirement age: [TARGET RETIREMENT AGE OR "as early as possible"]
- Estimated annual expenses in retirement: [ANNUAL RETIREMENT EXPENSES]
- Safe withdrawal rate preference: [4% OR "use 4% as default"]
- Current total investable net worth: [CURRENT PORTFOLIO VALUE]
- Annual savings rate (amount saved per year): [ANNUAL SAVINGS]
- Expected average annual investment return: [EXPECTED RETURN OR "use 7% as default"]

## Analysis Required

1. Calculate my FIRE number using the chosen safe withdrawal rate
2. Project my portfolio to FIRE at my expected return and show the timeline in years and target year
3. Calculate Lean FIRE (75% of expenses) and Fat FIRE (150% of expenses) variants as comparison
4. Show how the timeline changes if I increase my savings rate by 10% and 20%
5. Identify the single lever with the biggest impact on retiring earlier: savings rate, return, or expense reduction

📝 Fill in the blanks

Replace these placeholders with your own content:

[CURRENT AGE]
[TARGET RETIREMENT AGE OR "as early as possible"]
[ANNUAL RETIREMENT EXPENSES]
[4% OR "use 4% as default"]
[CURRENT PORTFOLIO VALUE]
[ANNUAL SAVINGS]
[EXPECTED RETURN OR "use 7% as default"]

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