Guides
Plain-English guides to Coast FIRE and its cousins, with worked examples you can check in our calculators.
- What Is Coast FIRE? How It Works, With ExamplesCoast FIRE explained in plain English: the two numbers behind it, a worked example, the coast number by age, and how sure you can be once you stop saving.9 min read · Updated October 6, 2026
- Coast FIRE vs Barista FIRE: What's the Difference?Coast FIRE and Barista FIRE compared side by side: how much you need for each, when one person would reach them, the risks, and how to choose.7 min read · Updated October 6, 2026
FIRE calculators
Coast FIRE calculatorThe month you can stop saving, with odds of success.Barista FIRE calculatorWhen part-time work plus your savings can cover your spending.Coast FIRE numberHow much you need invested today, by age.
FIRE number calculatorHow much you need to retire for good. Coming soon.
Lean and Fat FIREPlan a frugal or a generous retirement. Coming soon.