Coast FIRE Basics
What Is Coast FIRE? Reaching Your Coast FI Number
A practical introduction to the point where your existing investments may be able to grow toward a retirement target on their own.
Ethan ColeEditorial contributorEducation hub
FIRE Blog: Coast FIRE Guides and Formula Explanations
Practical explanations of Coast FIRE, the assumptions behind a calculator estimate, and the tradeoffs worth considering before changing a retirement plan.
Featured guide
Ethan ColeEditorial contributorAll Coast FIRE guides
Planning Guide
How to Calculate Your Coast FIRE Number
A clear, input-by-input explanation of what the Coast FIRE Calculator estimates and why each assumption changes the result.
Miles Carter7 min read
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Formula Guide
The Coast FIRE Formula Explained
A plain-English walkthrough of the inputs and formula behind a Coast FIRE estimate, with the assumptions stated clearly.
Noah Bennett8 min read
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Comparison
Coast FIRE vs. Barista FIRE: What’s the Difference?
A practical comparison of two FIRE concepts that can both involve continued work but describe different financial milestones.
Owen Brooks7 min read
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Decision Guide
Can You Stop Saving for Retirement After Reaching Coast FIRE?
Reaching an estimated Coast FIRE milestone can inform a decision, but it does not replace a broader review of goals, risks, and tradeoffs.
Caleb Foster6 min read
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Calculator Guide
How to Use a Coast FIRE Calculator
Use a Coast FIRE Calculator as a scenario tool: enter assumptions consistently, compare outcomes, and focus on the tradeoffs behind the number.
Liam Turner7 min read
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Planning Guide
Coast FIRE by Age: A Planning Guide
Age affects a Coast FIRE estimate because it changes the time available for compound growth—not because one age comes with a universal target.
Henry Walsh6 min read
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Calculation Guide
How Much Do You Need to Coast FIRE?
The amount you need to Coast FIRE is a present-value estimate tied to your own future spending target, time horizon, and planning assumptions.
Mason Reed7 min read
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Planning Risks
5 Coast FIRE Mistakes to Avoid
A Coast FIRE estimate can be useful, but it becomes less useful when inputs, limitations, and personal tradeoffs are hidden behind one number.
Grant Lewis6 min read
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Comparison
Coast FIRE vs. Lean FIRE: Key Differences
Coast FIRE and Lean FIRE both focus on intentional planning, but one describes a growth milestone while the other often describes supporting a lean retirement lifestyle.
Logan Pierce7 min read
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Use the calculator to compare your own assumptions in today’s dollars.