30-Year Projection Calculator

Over 30 years, compound growth typically does more of the work than your contributions. The stacked area chart makes the crossover point visible.

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Width of the optimistic/pessimistic band around your expected return.
30 yr
Projected value$812,898
Total contributed
$205,000
Investment growth
$607,898
Optimistic
$2,069,963
Conservative
$352,790

Starting with $25,000 and adding $500 a month for 30 years at 7%, your projected balance is $812,898 — of which $607,898 is compound growth. Depending on returns, the range runs from about $352,790 to $2,069,963.

Contributions vs. growth

How much of your balance is money you put in vs. compound growth.

View data table
YearContributedGrowth
1$31,000$2,004
2$37,000$4,586
4$49,000$11,656
5$55,000$16,237
6$61,000$21,583
7$67,000$27,749
9$79,000$42,784
10$85,000$51,784
11$91,000$61,868
12$97,000$73,116
14$109,000$99,440
15$115,000$114,705
16$121,000$131,506
17$127,000$149,956
19$139,000$192,287
20$145,000$216,432
21$151,000$242,756
22$157,000$271,417
24$169,000$336,437
25$175,000$373,171
26$181,000$412,995
27$187,000$456,131
29$199,000$553,316
30$205,000$607,898

Range of outcomes

Conservative, expected, and optimistic projections at your uncertainty band.

View data table
YearOptimisticExpectedConservative
1$34,205$33,004$31,844
2$44,475$41,586$38,895
4$68,718$60,656$53,649
5$82,982$71,237$61,364
6$98,896$82,583$69,313
7$116,653$94,749$77,505
9$158,567$121,784$94,643
10$183,228$136,784$103,605
11$210,743$152,868$112,839
12$241,442$170,116$122,354
14$313,908$208,440$142,262
15$356,545$229,705$152,672
16$404,116$252,506$163,399
17$457,191$276,956$174,452
19$582,479$331,287$197,577
20$656,195$361,432$209,670
21$738,441$393,756$222,130
22$830,204$428,417$234,970
24$1,046,816$505,437$261,832
25$1,174,265$548,171$275,879
26$1,316,461$593,995$290,354
27$1,475,112$643,131$305,268
29$1,849,616$752,316$336,472
30$2,069,963$812,898$352,790

How this works

See not just a single projection but a range — because real returns vary. All figures are computed locally in your browser.

Frequently asked questions

Why show a range instead of one number?

Markets don't return the same amount every year. The fan chart shows a conservative-to-optimistic band so you plan around uncertainty rather than a single optimistic line.

Is this investment advice?

No. This is a general projection tool. It doesn't account for taxes, fees, inflation, or your personal situation, and is not financial advice.

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For general information only — not investment advice. Projections are illustrative and not a guarantee of future returns.