Greatest Generation
Born 1901-1927
Current ages update automatically.
Current generation ages
See the current age range for each major generation, from the Greatest Generation through Gen Beta. Ages are calculated from today's date, so the page keeps updating as birthdays and new years pass.
Born 1901-1927
Current ages update automatically.
Born 1928-1945
Current ages update automatically.
Born 1946-1964
Current ages update automatically.
Born 1965-1980
Current ages update automatically.
Born 1981-1996
Current ages update automatically.
Born 1997-2012
Current ages update automatically.
Born 2013-2024
Current ages update automatically.
Born 2025-2039
Current ages update automatically.
Enter a birth year in the generation calculator to quickly find whether someone is Gen Z, Millennial, Gen X, Boomer, Gen Alpha, or another cohort.
For a clean reference list, visit the generation names and years page or open the individual generation pages below.
Current Gen Z ages, birth years, and where Gen Z fits between Millennials and Gen Alpha.
Current Millennial ages and the common birth-year boundary used for the cohort.
Current Generation X ages, birth years, and neighboring generation boundaries.
Current Boomer ages, birth years, and the postwar baby-boom definition.
No single government body defines every generation. These ranges follow common U.S. research and reference boundaries, with a note that Gen Alpha and Gen Beta are newer labels.
People born in the same calendar year may not have had their birthday yet. The current ranges use the oldest possible and youngest possible ages for each birth-year group.