Coast FIRE Calculator
Current Age
Retirement Age
Current Savings$
Annual Expenses$
Expected Return%
Safe Withdrawal Rate%
Inflation Rate%
Coast FIRE reached — your $100,000 will grow to $1,067,658 by age 65.
Coast FIRE Number
$93,663
FIRE Number
$1,000,000
Projected at Retirement
$1,067,658
Gap
Reached
Real Projected (inflation-adj.)
$1,067,658
Coast Growth Projection
Growth (no contributions) FIRE Number
Coast Growth (No Contributions)FIRE Number
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Sensitivity — Coast Number by Return Rate & Retirement Age
| Ret. Age | 4% | 5% | 6% | 7% | 8% | 9% | 10% |
|---|---|---|---|---|---|---|---|
| 55 | $375,117 | $295,303 | $232,999 | $184,249 | $146,018 | $115,968 | $92,296 |
| 60 | $308,319 | $231,377 | $174,110 | $131,367 | $99,377 | $75,371 | $57,309 |
| 65 | $253,415 | $181,290 | $130,105 | $93,663 | $67,635 | $48,986 | $35,584 |
| 70 | $208,289 | $142,046 | $97,222 | $66,780 | $46,031 | $31,838 | $22,095 |
Methodology
Coast FIRE is the amount you need invested today so that, with zero additional contributions, compound growth alone will grow your portfolio to your FIRE number by your target retirement age.
FIRE Number = Annual Expenses / SWR
Coast Number = FIRE Number / (1 + return)^years
$1,000,000 / (1 + 0.07)^35 = $93,663