$250,000 for 15 years at returns from 4% to 10%
| Return | Balance | Multiple | In today’s dollars |
|---|---|---|---|
| 4% | $450,236 | 1.8× | $288,989 |
| 5% | $519,732 | 2.1× | $333,596 |
| 6% | $599,140 | 2.4× | $384,565 |
| 7% | $689,758 | 2.8× | $442,729 |
| 8% | $793,042 | 3.2× | $509,024 |
| 10% | $1,044,312 | 4.2× | $670,304 |
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 |
| 4 | $250,000 | $327,699 | $291,156 |
| 5 | $250,000 | $350,638 | $302,463 |
| 6 | $250,000 | $375,183 | $314,210 |
| 7 | $250,000 | $401,445 | $326,412 |
| 8 | $250,000 | $429,547 | $339,088 |
| 9 | $250,000 | $459,615 | $352,256 |
| 10 | $250,000 | $491,788 | $365,936 |
| 11 | $250,000 | $526,213 | $380,147 |
| 12 | $250,000 | $563,048 | $394,910 |
| 13 | $250,000 | $602,461 | $410,247 |
| 14 | $250,000 | $644,634 | $426,179 |
| 15 | $250,000 | $689,758 | $442,729 |
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) |
|---|---|---|---|
| 8 years | $270,109 | $408,486 | $612,654 |
| 15 years | $346,426 | $634,391 | $1,081,064 |
The middle of the simulation sits below the steady 7% figure of $689,758 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $689,758 would pay in retirement
At a 4% first-year withdrawal, $689,758 pays about $27,590 a year, $2,299 a month, before tax; in today’s dollars that is about $17,709 a year. How long a balance near it lasts at each withdrawal: how long $700,000 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 |
| 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 |
| $250,000 for 40 years | $3,743,614 | $1,147,631 |
| $250,000 for 50 years | $7,364,256 | $1,679,839 |
Other amounts for 15 years
$1,000: $2,759, $5,000: $13,795, $10,000: $27,590, $20,000: $55,181, $25,000: $68,976, $50,000: $137,952, $100,000: $275,903, $200,000: $551,806, $500,000: $1,379,516, $1,000,000: $2,759,032, $2,000,000: $5,518,063.
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.