$500,000 for 15 years at returns from 4% to 10%
| Return | Balance | Multiple | In today’s dollars |
|---|---|---|---|
| 4% | $900,472 | 1.8× | $577,979 |
| 5% | $1,039,464 | 2.1× | $667,192 |
| 6% | $1,198,279 | 2.4× | $769,130 |
| 7% | $1,379,516 | 2.8× | $885,459 |
| 8% | $1,586,085 | 3.2× | $1,018,047 |
| 10% | $2,088,624 | 4.2× | $1,340,608 |
Year by year at 7%
| Year | Put in so far | Balance | In today’s dollars |
|---|---|---|---|
| 1 | $500,000 | $535,000 | $519,417 |
| 2 | $500,000 | $572,450 | $539,589 |
| 3 | $500,000 | $612,522 | $560,544 |
| 4 | $500,000 | $655,398 | $582,313 |
| 5 | $500,000 | $701,276 | $604,927 |
| 6 | $500,000 | $750,365 | $628,419 |
| 7 | $500,000 | $802,891 | $652,824 |
| 8 | $500,000 | $859,093 | $678,176 |
| 9 | $500,000 | $919,230 | $704,513 |
| 10 | $500,000 | $983,576 | $731,873 |
| 11 | $500,000 | $1,052,426 | $760,295 |
| 12 | $500,000 | $1,126,096 | $789,821 |
| 13 | $500,000 | $1,204,923 | $820,494 |
| 14 | $500,000 | $1,289,267 | $852,357 |
| 15 | $500,000 | $1,379,516 | $885,459 |
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 $500,000 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 | $540,217 | $816,972 | $1,225,308 |
| 15 years | $692,851 | $1,268,782 | $2,162,127 |
The middle of the simulation sits below the steady 7% figure of $1,379,516 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $1,379,516 would pay in retirement
At a 4% first-year withdrawal, $1,379,516 pays about $55,181 a year, $4,598 a month, before tax; in today’s dollars that is about $35,418 a year. How long a balance near it lasts at each withdrawal: how long $1.5 million lasts. To stop saving early and let growth do the rest, see Coast FIRE numbers by age.
$500,000 for other terms
| Years | Balance | In today’s dollars |
|---|---|---|
| $500,000 for 5 years | $701,276 | $604,927 |
| $500,000 for 10 years | $983,576 | $731,873 |
| 15 years | $1,379,516 | $885,459 |
| $500,000 for 20 years | $1,934,842 | $1,071,275 |
| $500,000 for 25 years | $2,713,716 | $1,296,086 |
| $500,000 for 30 years | $3,806,128 | $1,568,074 |
| $500,000 for 40 years | $7,487,229 | $2,295,261 |
| $500,000 for 50 years | $14,728,513 | $3,359,678 |
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, $250,000: $689,758, $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.