$25,000 for 15 years at returns from 4% to 10%
| Return | Balance | Multiple | In today’s dollars |
|---|---|---|---|
| 4% | $45,024 | 1.8× | $28,899 |
| 5% | $51,973 | 2.1× | $33,360 |
| 6% | $59,914 | 2.4× | $38,456 |
| 7% | $68,976 | 2.8× | $44,273 |
| 8% | $79,304 | 3.2× | $50,902 |
| 10% | $104,431 | 4.2× | $67,030 |
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 |
| 4 | $25,000 | $32,770 | $29,116 |
| 5 | $25,000 | $35,064 | $30,246 |
| 6 | $25,000 | $37,518 | $31,421 |
| 7 | $25,000 | $40,145 | $32,641 |
| 8 | $25,000 | $42,955 | $33,909 |
| 9 | $25,000 | $45,961 | $35,226 |
| 10 | $25,000 | $49,179 | $36,594 |
| 11 | $25,000 | $52,621 | $38,015 |
| 12 | $25,000 | $56,305 | $39,491 |
| 13 | $25,000 | $60,246 | $41,025 |
| 14 | $25,000 | $64,463 | $42,618 |
| 15 | $25,000 | $68,976 | $44,273 |
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) |
|---|---|---|---|
| 8 years | $27,011 | $40,849 | $61,265 |
| 15 years | $34,643 | $63,439 | $108,106 |
The middle of the simulation sits below the steady 7% figure of $68,976 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $68,976 would pay in retirement
At a 4% first-year withdrawal, $68,976 pays about $2,759 a year, $230 a month, before tax; in today’s dollars that is about $1,771 a year. How long a balance near it lasts at each withdrawal: how long $100,000 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 |
| 15 years | $68,976 | $44,273 |
| $25,000 for 20 years | $96,742 | $53,564 |
| $25,000 for 25 years | $135,686 | $64,804 |
| $25,000 for 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 15 years
$1,000: $2,759, $5,000: $13,795, $10,000: $27,590, $20,000: $55,181, $50,000: $137,952, $100,000: $275,903, $200,000: $551,806, $250,000: $689,758, $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.