How Old Am I If I Was Born in 1940?
If you were born in 1940, you are 86 years old if you have already had your birthday this year, or 85 if you have not (as of Thursday, October 29, 2026).
85 or 86
years old in 2026
Everyone born in 1940 turns 86 on their birthday in 2026. By October 29, people with birthdays from January 1 to October 29 are already 86, and the rest are still 85. The Pew Research Center counts 1940 births in the Silent Generation, which runs from 1928 to 1945. Most of 1940 was the year of the Metal Dragon in the Chinese zodiac. Lunar New Year came on February 8, 1940, so babies born before it are the Earth Rabbit.
Age by birth month
Your exact age today depends on the month and day you were born in 1940. The months and days below run from the last day of each month to the first.
| Born in | Years | Months | Days |
|---|---|---|---|
| January 1940 | 86 | 1,040–1,041 | 31,683–31,713 |
| February 1940 | 86 | 1,040 | 31,654–31,682 |
| March 1940 | 86 | 1,038–1,039 | 31,623–31,653 |
| April 1940 | 86 | 1,037–1,038 | 31,593–31,622 |
| May 1940 | 86 | 1,036–1,037 | 31,562–31,592 |
| June 1940 | 86 | 1,035–1,036 | 31,532–31,561 |
| July 1940 | 86 | 1,034–1,035 | 31,501–31,531 |
| August 1940 | 86 | 1,033–1,034 | 31,470–31,500 |
| September 1940 | 86 | 1,032–1,033 | 31,440–31,469 |
| October 1940 | 85 or 86 | 1,031–1,032 | 31,409–31,439 |
| November 1940 | 85 | 1,030–1,031 | 31,379–31,408 |
| December 1940 | 85 | 1,029–1,030 | 31,348–31,378 |
Counted from Thursday, October 29, 2026 (US Eastern time). The page recounts from your device's date when it opens.
How old in 2030, 2040 and 2050
Someone born in 1940 turns 90 in 2030, 100 in 2040 and 110 in 2050. Before the birthday in each year, the age is one less.
| Year | Age after the birthday | Age before it |
|---|---|---|
| 2030 | 90 | 89 |
| 2040 | 100 | 99 |
| 2050 | 110 | 109 |
Retirement and Medicare ages for 1940
People born in 1940 could start Social Security at 62, in 2002, at a reduced rate. Their full retirement age is 65 and 6 months, which they reached in 2005 if born from January to June, or in 2006 if born later. Each year they wait after that, up to 70 in 2010, raises the monthly amount. A January 1, 1940 birthday counts as 1939 for this rule.
Medicare starts at 65, in 2005. You can sign up in the 3 months before your birthday month, in that month or in the 3 months after.
Required minimum distributions from IRAs began at 70½ for anyone born before July 1, 1949, so 2010 for a January to June 1940 birthday and 2011 for a later one.
| Milestone | Age | Year |
|---|---|---|
| Earliest Social Security retirement benefits | 62 | 2002 |
| Medicare eligibility | 65 | 2005 |
| Social Security full retirement age | 65 and 6 months | 2005 or 2006 |
| Social Security stops growing for delay | 70 | 2010 |
| Required minimum distributions start | 70½ | 2010 or 2011 |
Sources: SSA full retirement age table, Medicare.gov sign-up dates, IRS required minimum distribution FAQs. General information, not tax or benefits advice.
What year were you born if you are 86?
Someone who is 86 on October 29, 2026 and has had a birthday this year was born in 1940. If their birthday is still ahead, between October 30 and December 31, they were born in 1939. The birth year table covers every age from 1 to 100.
Birth year 1940 facts
| Fact | Answer |
|---|---|
| Age at the end of 2026 | 86 |
| Generation (Pew) | Silent Generation (1928–1945) |
| 1940 started on | Monday, January 1, 1940 |
| Leap year | Yes, 1940 had 366 days |
| Chinese zodiac | Metal Dragon from February 8, 1940; Earth Rabbit before |
Milestone birthdays
| Milestone | Year | When |
|---|---|---|
| Turns 18 | 1958 | Past |
| Turns 21 | 1961 | Past |
| Turns 30 | 1970 | Past |
| Turns 40 | 1980 | Past |
| Turns 50 | 1990 | Past |
| Turns 60 | 2000 | Past |
| Turns 65 | 2005 | Past |
| Turns 70 | 2010 | Past |
| Turns 80 | 2020 | Past |
| Turns 90 | 2030 | In 4 years |
| Turns 100 | 2040 | In 14 years |
Days lived
Someone born in 1940 has been alive between 31,348 days (born December 31) and 31,713 days (born January 1) as of Thursday, October 29, 2026. That is roughly 4,504 weeks.
In the US, most children born in 1940 finished high school in 1958, or in 1959 if their birthday fell after the school-entry cut-off. That cut-off is usually in late summer or early autumn and varies by state.
Born in 1940 questions
What generation is someone born in 1940?
Someone born in 1940 belongs to the Silent Generation (1928–1945), as defined by the Pew Research Center.
What is the full retirement age for someone born in 1940?
It is 65 and 6 months for Social Security. Benefits can start from 62 at a reduced rate.
What Chinese zodiac sign is 1940?
Most of 1940 was the Metal Dragon. Births before Lunar New Year on February 8, 1940 belong to the Earth Rabbit.
Related pages
Cite this page
APA: ClockTotals. (2026, October 29). How Old Am I If I Was Born in 1940? https://clocktotals.com/how-old/born-in-1940/
MLA: “How Old Am I If I Was Born in 1940?” ClockTotals, 29 Oct. 2026, clocktotals.com/how-old/born-in-1940/.
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