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How old is someone born in 1984?

41 or 42 years old

On Wednesday, September 30, 2026

42 if their birthday has already happened this year, 41 if not; they turn 43 in 2027.

Want the exact age? Enter the full date of birth in the age calculator.

Born in 1984

Generation
Millennials
about 1981–1996
Days alive
15,248–15,613
depending on the birthday
Jan 1, 1984
Sunday
Leap year?
Yes
366 days

More about 1984

Chinese zodiac
Wood Ratfrom Chinese New Year (late January or February); born before it, Pig
1984 began and ended
Sunday to Monday52 ISO weeks
February 29ths lived
11depending on the birthday
Turned 18
2002and 21 in 2005

Milestone birthdays

Milestone birthdays for people born in 1984
AgeYearWhen
18 years200224 years ago
21 years200521 years ago
30 years201412 years ago
40 years20242 years ago
50 years2034In 8 years
60 years2044In 18 years
65 years2049In 23 years
70 years2054In 28 years
80 years2064In 38 years
90 years2074In 48 years
100 years2084In 58 years

Generation names follow Pew Research Center for the Silent Generation to Gen Z and common usage for others; the boundaries are approximate.

Born in the 1980s

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Frequently asked questions

How old is someone born in 1984?

41 or 42 in 2026: 42 once their birthday has passed this year, 41 before it.

What generation is someone born in 1984?

Millennials, usually dated 1981–1996. Generation boundaries are approximate and vary between researchers.

What is the Chinese zodiac sign for 1984?

1984 is the year of the Wood Rat, starting at Chinese New Year in late January or February. Anyone born in 1984 before that date belongs to the year of the Pig. The twelve animals repeat in a fixed cycle, and the element changes every two years.

Was 1984 a leap year?

Yes — 1984 had 366 days, with a February 29.