Coast FIRE Calculator: Work Out the Numbers First
Money choices feel clearer with numbers in front of you. This calculator turns a few inputs into a simple estimate you can compare and plan around.
What is the Coast FIRE Calculator?
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.
How to use it
- Enter your numbers.
- Check that each figure looks right.
- Click Calculate Coast FIRE and read the result.
Worked example
To reach $750,000 in 20 years at 7% a year, you would need about $193,814.25 invested today, assuming no further contributions.
How much do I need today to coast to $750,000 in 20 years at 7%?
Discount $750,000 back 20 years at 7 percent, which gives about $193,814.25.
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.