$250,000 for 40 years at returns from 4% to 10%
| Return | Balance | Multiple | In today’s dollars |
|---|---|---|---|
| 4% | $1,200,255 | 4.8× | $367,946 |
| 5% | $1,759,997 | 7.0× | $539,539 |
| 6% | $2,571,429 | 10.3× | $788,289 |
| 7% | $3,743,614 | 15.0× | $1,147,631 |
| 8% | $5,431,130 | 21.7× | $1,664,950 |
| 10% | $11,314,814 | 45.3× | $3,468,634 |
Year by year at 7%
| Year | Put in so far | Balance | In today’s dollars |
|---|---|---|---|
| 1 | $250,000 | $267,500 | $259,709 |
| 2 | $250,000 | $286,225 | $269,795 |
| 3 | $250,000 | $306,261 | $280,272 |
| 5 | $250,000 | $350,638 | $302,463 |
| 10 | $250,000 | $491,788 | $365,936 |
| 15 | $250,000 | $689,758 | $442,729 |
| 20 | $250,000 | $967,421 | $535,638 |
| 25 | $250,000 | $1,356,858 | $648,043 |
| 30 | $250,000 | $1,903,064 | $784,037 |
| 35 | $250,000 | $2,669,145 | $948,570 |
| 40 | $250,000 | $3,743,614 | $1,147,631 |
The range in 1,000 simulated markets
A 7% average does not arrive as 7% every year. In 1,000 simulated sequences of returns averaging 7% with 12% volatility, this is where $250,000 ended up: 1 in 10 markets finished below the first figure, half below the middle one, and 1 in 10 above the last.
| After | Weak (1 in 10 lower) | Middle | Strong (1 in 10 higher) |
|---|---|---|---|
| 20 years | $434,913 | $834,350 | $1,604,458 |
| 40 years | $1,138,700 | $2,923,111 | $7,383,482 |
The middle of the simulation sits below the steady 7% figure of $3,743,614 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $3,743,614 would pay in retirement
At a 4% first-year withdrawal, $3,743,614 pays about $149,745 a year, $12,479 a month, before tax; in today’s dollars that is about $45,905 a year. How long a balance near it lasts at each withdrawal: how long $4 million lasts. To stop saving early and let growth do the rest, see Coast FIRE numbers by age.
$250,000 for other terms
| Years | Balance | In today’s dollars |
|---|---|---|
| $250,000 for 5 years | $350,638 | $302,463 |
| $250,000 for 10 years | $491,788 | $365,936 |
| $250,000 for 15 years | $689,758 | $442,729 |
| $250,000 for 20 years | $967,421 | $535,638 |
| $250,000 for 25 years | $1,356,858 | $648,043 |
| $250,000 for 30 years | $1,903,064 | $784,037 |
| 40 years | $3,743,614 | $1,147,631 |
| $250,000 for 50 years | $7,364,256 | $1,679,839 |
Other amounts for 40 years
$1,000: $14,974, $5,000: $74,872, $10,000: $149,745, $20,000: $299,489, $25,000: $374,361, $50,000: $748,723, $100,000: $1,497,446, $200,000: $2,994,892, $500,000: $7,487,229, $1,000,000: $14,974,458, $2,000,000: $29,948,916.
How it is worked out
Monthly amounts are deposited at the end of each month and compounded monthly at the rate that equals the annual return; lump sums compound once a year. The headline return is 7% a year, the Trinity-style average the site’s retirement pages use; stock-heavy portfolios have averaged more over long periods and bond-heavy ones less, which is why every page shows 4% to 10%. Today’s dollars divide by 3% inflation a year. The range comes from 1,000 simulated sequences of yearly returns averaging 7% with 12% volatility, with each year’s deposits added through the year. Fees and taxes are not taken out. More on the methodology page.