$3,000 a month for 35 years at returns from 4% to 10%
| Return | Balance | Of which growth | In today’s dollars |
|---|---|---|---|
| 4% | $2,699,746 | $1,439,746 | $959,445 |
| 5% | $3,325,389 | $2,065,389 | $1,181,788 |
| 6% | $4,120,812 | $2,860,812 | $1,464,468 |
| 7% | $5,134,241 | $3,874,241 | $1,824,624 |
| 8% | $6,427,703 | $5,167,703 | $2,284,299 |
| 10% | $10,196,373 | $8,936,373 | $3,623,622 |
Year by year at 7%
| Year | Put in so far | Balance | In today’s dollars |
|---|---|---|---|
| 1 | $36,000 | $37,141 | $36,059 |
| 2 | $72,000 | $76,882 | $72,468 |
| 3 | $108,000 | $119,404 | $109,272 |
| 5 | $180,000 | $213,588 | $184,243 |
| 10 | $360,000 | $513,155 | $381,836 |
| 15 | $540,000 | $933,314 | $599,059 |
| 20 | $720,000 | $1,522,609 | $843,032 |
| 25 | $900,000 | $2,349,126 | $1,121,955 |
| 30 | $1,080,000 | $3,508,358 | $1,445,397 |
| 35 | $1,260,000 | $5,134,241 | $1,824,624 |
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 $3,000 a month 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) |
|---|---|---|---|
| 18 years | $793,052 | $1,188,483 | $1,835,246 |
| 35 years | $2,529,361 | $4,645,848 | $8,886,468 |
The middle of the simulation sits below the steady 7% figure of $5,134,241 because ups and downs cost compounding: a 20% loss needs a 25% gain to get back.
What $5,134,241 would pay in retirement
At a 4% first-year withdrawal, $5,134,241 pays about $205,370 a year, $17,114 a month, before tax; in today’s dollars that is about $72,985 a year. How long a balance near it lasts at each withdrawal: how long $5 million lasts. To stop saving early and let growth do the rest, see Coast FIRE numbers by age.
$36,000 a year is more than the 2026 401(k) limit of $24,500, so part of it would go to a taxable account or a spouse’s plan. See contribution limits, the 401(k) calculator and the Roth IRA calculator.
$3,000 a month for other terms
| Years | Balance | In today’s dollars |
|---|---|---|
| $3,000 a month for 5 years | $213,588 | $184,243 |
| $3,000 a month for 10 years | $513,155 | $381,836 |
| $3,000 a month for 15 years | $933,314 | $599,059 |
| $3,000 a month for 20 years | $1,522,609 | $843,032 |
| $3,000 a month for 25 years | $2,349,126 | $1,121,955 |
| $3,000 a month for 30 years | $3,508,358 | $1,445,397 |
| 35 years | $5,134,241 | $1,824,624 |
| $3,000 a month for 40 years | $7,414,626 | $2,273,004 |
Other amounts for 35 years
$50 a month: $85,571, $100 a month: $171,141, $150 a month: $256,712, $200 a month: $342,283, $250 a month: $427,853, $300 a month: $513,424, $400 a month: $684,565, $500 a month: $855,707, $600 a month: $1,026,848, $750 a month: $1,283,560, $1,000 a month: $1,711,414, $1,500 a month: $2,567,120, $2,000 a month: $3,422,827, $2,500 a month: $4,278,534, $5,000 a month: $8,557,068.
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.