$25,000 for 30 years at returns from 4% to 10%
| Return | Balance | Multiple | In today’s dollars |
|---|---|---|---|
| 4% | $81,085 | 3.2× | $33,406 |
| 5% | $108,049 | 4.3× | $44,515 |
| 6% | $143,587 | 5.7× | $59,156 |
| 7% | $190,306 | 7.6× | $78,404 |
| 8% | $251,566 | 10.1× | $103,642 |
| 10% | $436,235 | 17.4× | $179,723 |
Year by year at 7%
| Year | Put in so far | Balance | In today’s dollars |
|---|---|---|---|
| 1 | $25,000 | $26,750 | $25,971 |
| 2 | $25,000 | $28,623 | $26,979 |
| 3 | $25,000 | $30,626 | $28,027 |
| 5 | $25,000 | $35,064 | $30,246 |
| 10 | $25,000 | $49,179 | $36,594 |
| 15 | $25,000 | $68,976 | $44,273 |
| 20 | $25,000 | $96,742 | $53,564 |
| 25 | $25,000 | $135,686 | $64,804 |
| 30 | $25,000 | $190,306 | $78,404 |
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 $25,000 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) |
|---|---|---|---|
| 15 years | $34,643 | $63,439 | $108,106 |
| 30 years | $69,604 | $157,470 | $351,029 |
The middle of the simulation sits below the steady 7% figure of $190,306 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $190,306 would pay in retirement
At a 4% first-year withdrawal, $190,306 pays about $7,612 a year, $634 a month, before tax; in today’s dollars that is about $3,136 a year. How long a balance near it lasts at each withdrawal: how long $200,000 lasts. To stop saving early and let growth do the rest, see Coast FIRE numbers by age.
$25,000 for other terms
| Years | Balance | In today’s dollars |
|---|---|---|
| $25,000 for 5 years | $35,064 | $30,246 |
| $25,000 for 10 years | $49,179 | $36,594 |
| $25,000 for 15 years | $68,976 | $44,273 |
| $25,000 for 20 years | $96,742 | $53,564 |
| $25,000 for 25 years | $135,686 | $64,804 |
| 30 years | $190,306 | $78,404 |
| $25,000 for 40 years | $374,361 | $114,763 |
| $25,000 for 50 years | $736,426 | $167,984 |
Other amounts for 30 years
$1,000: $7,612, $5,000: $38,061, $10,000: $76,123, $20,000: $152,245, $50,000: $380,613, $100,000: $761,226, $200,000: $1,522,451, $250,000: $1,903,064, $500,000: $3,806,128, $1,000,000: $7,612,255, $2,000,000: $15,224,510.
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.