$5,000 for 40 years at returns from 4% to 10%
| Return | Balance | Multiple | In today’s dollars |
|---|---|---|---|
| 4% | $24,005 | 4.8× | $7,359 |
| 5% | $35,200 | 7.0× | $10,791 |
| 6% | $51,429 | 10.3× | $15,766 |
| 7% | $74,872 | 15.0× | $22,953 |
| 8% | $108,623 | 21.7× | $33,299 |
| 10% | $226,296 | 45.3× | $69,373 |
Year by year at 7%
| Year | Put in so far | Balance | In today’s dollars |
|---|---|---|---|
| 1 | $5,000 | $5,350 | $5,194 |
| 2 | $5,000 | $5,725 | $5,396 |
| 3 | $5,000 | $6,125 | $5,605 |
| 5 | $5,000 | $7,013 | $6,049 |
| 10 | $5,000 | $9,836 | $7,319 |
| 15 | $5,000 | $13,795 | $8,855 |
| 20 | $5,000 | $19,348 | $10,713 |
| 25 | $5,000 | $27,137 | $12,961 |
| 30 | $5,000 | $38,061 | $15,681 |
| 35 | $5,000 | $53,383 | $18,971 |
| 40 | $5,000 | $74,872 | $22,953 |
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 $5,000 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 | $8,698 | $16,687 | $32,089 |
| 40 years | $22,774 | $58,462 | $147,670 |
The middle of the simulation sits below the steady 7% figure of $74,872 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $74,872 would pay in retirement
At a 4% first-year withdrawal, $74,872 pays about $2,995 a year, $250 a month, before tax; in today’s dollars that is about $918 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.
$5,000 for other terms
| Years | Balance | In today’s dollars |
|---|---|---|
| $5,000 for 5 years | $7,013 | $6,049 |
| $5,000 for 10 years | $9,836 | $7,319 |
| $5,000 for 15 years | $13,795 | $8,855 |
| $5,000 for 20 years | $19,348 | $10,713 |
| $5,000 for 25 years | $27,137 | $12,961 |
| $5,000 for 30 years | $38,061 | $15,681 |
| 40 years | $74,872 | $22,953 |
| $5,000 for 50 years | $147,285 | $33,597 |
Other amounts for 40 years
$1,000: $14,974, $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, $250,000: $3,743,614, $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.