Free resources
Educational checklists and guides that pair with RetireFire calculators. No account required. Not financial advice.
Planning guides by question
Retire by age, portfolio size, spending, couples, Social Security, pension, and healthcare.
Research and downloadable data
Original Coast-by-age, retirement-timing, and calculator-assumption tables with CSV downloads.
Coast FIRE assumptions checklist
Pre-flight questions before you change savings behavior based on a single coast number.
Sequence of returns risk guide
How to read path risk, success rates, and free stress tests without false precision.
How to stress-test your Coast number
Deterministic baseline → sensitivity → free Monte Carlo → go/no-go gates.
Semi-retirement math: portfolio + part-time income
Gap formula, SWR tables, Coast vs Barista, income volatility workflow.
Methodology explained (human version)
Narrative tour of formulas, free stress tests, defaults, and limits.
Lean / Regular / Fat FIRE numbers (2026)
Transparent spending presets × 3% / 3.5% / 4% SWR tables you can re-run.
Barista FIRE healthcare & benefits cliffs
Why insurance and hour thresholds can dominate simple gap math.
Methodology
Published formulas, defaults, and the Monte Carlo model notes.
Approach, limitations & roadmap
Product philosophy and what stays free.
All blog guides
Coast, Barista, SWR, age tables, levers, and stress-test education.
All calculators
FIRE number, years, Coast, Barista — free and shareable.