Coast FIRE Calculator
Find how much you need invested today to coast to your FIRE number.
Quick answer: enter your details below and click Calculate Coast FIRE — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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Enter your details below.
How to use
- Enter your numbers.
- Check that each figure looks right.
- Click Calculate Coast FIRE and read the result.
About this tool
Coast FIRE discounts your future target back to today at an assumed yearly return, showing what you would need already invested if you added nothing more. All figures here are estimates: check current rules and rates before acting on them.
Frequently asked questions
Are these figures exact?
No. They are estimates based on the numbers you enter. Rules, rates, and charges change, so check current rules before making a financial decision.
What should I do with this estimate?
Use it to compare options and plan your next step, then confirm the final figure with the provider, lender, or adviser involved before committing money.