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Coast FIRE: $500K Saved, Retire at 55

With $500K saved at age 30 and a target retirement age of 55, your Coast FIRE number is $385,777. Since your savings of $500K exceed this target by $114,223, you've already reached Coast FIRE. Your investments will grow to $1,000,000 by age 55 through compound returns alone, without any additional contributions.

Personal Details

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Coast FIRE Number

$385,777

How much you need saved today so compound growth finishes the job

Coast Status

You can coast NOW! Stop saving and let compound growth do the rest.

Summary

Traditional FIRE Number$1,000,000
Coast FIRE Number$385,777
Current Savings$500,000
Surplus / Deficit$114,223
Years Until Coast0 (coasting!)

What This Means

Coast FIRE means having enough invested that compound growth alone will bring your portfolio to your full FIRE number by your target retirement age, without any additional contributions. Your full FIRE number is $1,000,000, calculated as 25x your $40,000 annual expenses using the 4% safe withdrawal rate. To find your Coast FIRE number, we discount $1,000,000 back 25 years at a 3.9% real return (7% nominal minus 3% inflation), giving $385,777. With $500K already saved, you've surpassed your Coast FIRE number and can stop contributing to retirement accounts. Any work income can go entirely toward current living expenses or enjoyment.

Frequently Asked Questions

What is the Coast FIRE number with $500K saved?
To retire at 55 with $40,000 in annual expenses, your Coast FIRE number is $385,777. This is the amount you need invested today at age 30 so that compound growth at a 3.9% real return reaches your full FIRE number of $1,000,000 by age 55, with no additional contributions.
Can I stop saving for retirement with $500K?
Yes. With $500K saved, you exceed your Coast FIRE number of $385,777 by $114,223. Your investments will compound to $1,000,000 by age 55 without any additional contributions. You can shift to lower-paying but more fulfilling work without worrying about retirement savings.
How does retiring at 55 affect my Coast FIRE number?
Retiring at 55 gives your investments 25 years to grow from age 30. An earlier retirement age means a higher Coast FIRE number because there's less time for compound growth. Your Coast FIRE number of $385,777 is calculated by discounting the $1,000,000 FIRE number back 25 years at a 3.9% real return.

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