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Coast FIRE: $500K Saved, Retire at 70

With $500K saved at age 30 and a target retirement age of 70, your Coast FIRE number is $217,840. Since your savings of $500K exceed this target by $282,160, you've already reached Coast FIRE. Your investments will grow to $1,000,000 by age 70 through compound returns alone, without any additional contributions.

Personal Details

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Coast FIRE Number

$217,840

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$217,840
Current Savings$500,000
Surplus / Deficit$282,160
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 40 years at a 3.9% real return (7% nominal minus 3% inflation), giving $217,840. 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 70 with $40,000 in annual expenses, your Coast FIRE number is $217,840. 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 70, with no additional contributions.
Can I stop saving for retirement with $500K?
Yes. With $500K saved, you exceed your Coast FIRE number of $217,840 by $282,160. Your investments will compound to $1,000,000 by age 70 without any additional contributions. You can shift to lower-paying but more fulfilling work without worrying about retirement savings.
How does retiring at 70 affect my Coast FIRE number?
Retiring at 70 gives your investments 40 years to grow from age 30. A later retirement age means a lower Coast FIRE number because compound growth has more time to work. Your Coast FIRE number of $217,840 is calculated by discounting the $1,000,000 FIRE number back 40 years at a 3.9% real return.

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