How old is someone born in…?
Start with a birth year, then replace the January 1 placeholder with the exact birthday. Each page calculates age from today's local calendar date without storing the date.
1940s birth years
Choose a birth year from 1940–1949. The exact birthday still determines whether this year's birthday has passed.
1950s birth years
Choose a birth year from 1950–1959. The exact birthday still determines whether this year's birthday has passed.
1960s birth years
Choose a birth year from 1960–1969. The exact birthday still determines whether this year's birthday has passed.
1970s birth years
Choose a birth year from 1970–1979. The exact birthday still determines whether this year's birthday has passed.
1980s birth years
Choose a birth year from 1980–1989. The exact birthday still determines whether this year's birthday has passed.
1990s birth years
Choose a birth year from 1990–1999. The exact birthday still determines whether this year's birthday has passed.
2000s birth years
Choose a birth year from 2000–2009. The exact birthday still determines whether this year's birthday has passed.
2010s birth years
Choose a birth year from 2010–2019. The exact birthday still determines whether this year's birthday has passed.
2020s birth years
Choose a birth year from 2020–2026. The exact birthday still determines whether this year's birthday has passed.