FIRE Retirement Calculator
Financial independence projection with Lean/Fat/Coast scenarios — free and private
Assumptions
Today's monthly spending
Result
Target number
600,000
24.333333333333332 years to target
Illustrative planning only, not investment advice.
FIRE scenario comparison
| Scenario | Withdrawal | Target |
|---|---|---|
| LeanFIRE | 4% | 480,000 |
| FatFIRE | 3% | 900,000 |
| CoastFIRE | 4% | 600,000 |
{
"target": 600000,
"years": 24.333333333333332,
"scenarios": [
{
"scenario": "LeanFIRE",
"withdrawal_rate": 0.04,
"target": 480000
},
{
"scenario": "FatFIRE",
"withdrawal_rate": 0.03,
"target": 900000
},
{
"scenario": "CoastFIRE",
"withdrawal_rate": 0.04,
"target": 600000
}
]
}About this tool
Project a FIRE portfolio target using expenses, savings, contributions and return. Free, private and browser-based. FIRE & Retirement Calculator runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- FIRE & Retirement Calculator is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use FIRE & Retirement Calculator?
Open FIRE & Retirement Calculator, enter or paste your input, and copy the result. The page works without an account.
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