FIRE calculator
Coast FIRE Calculator
Coast FIRE asks a simple question: if you stopped adding new money, would your current invested balance still grow enough to hit your retirement target? This calculator estimates the balance needed today and shows whether you are already there.
Balance needed today to coast
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Already at coast FIRE?
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Extra amount still needed today
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How to interpret the result
If the calculator says you are already at coast FIRE, it means your current balance could grow to the target by retirement under the return assumption entered here, even with no additional contributions. That does not mean the path is risk-free. It means the math works under the assumed rate and time horizon.
Good uses for this page
- Checking whether you can reduce savings pressure later.
- Comparing conservative and optimistic return assumptions.
- Understanding how age changes the required invested balance today.