Free guided planner
Start with one FIRE question
Choose a target age or another FIRE question, enter the essential assumptions, and get a calculation from the same engine as the full planner. No chatbot account or AI service is involved.
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Your guided result
Assumptions used
This is a smooth, fixed-return estimate in today's money. It excludes taxes, fees and country-specific pension rules. Market returns vary; use ranges and stress tests.
Worked example · model 2.2.0
How much to invest to target FIRE at 55
For a fictional 30-year-old with US$100,000 invested, US$40,000 yearly retirement spending, a 4% withdrawal rate, 7% nominal return, 3% inflation and no retirement income or scheduled events, the current US$1,000 monthly contribution reaches the modeled target around age 65.
The same engine calculates about US$1,950 per month in the first year to fund the withdrawal-rule target by age 55. The displayed amount is rounded up and rerun against the monthly model.
This is a deterministic illustration in today's purchasing power. It does not show a success probability or prove the plan will survive uncertain markets.
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