calculator
FIRE number calculator
Set a spending target and withdrawal rate, then test how returns and monthly contributions change a simple accumulation estimate.
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Practical tools, guides, and research notes.
Each resource links its sources, names its limits, and keeps a revision history at a stable URL.
2 resources
research guide
Annotated retirement planning research notes
A reading guide to withdrawal-rate research, compounding tools, longevity assumptions, and the blind spots in a single FIRE target.
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