As of 2026-09-24, someone born in 2021 is about 5 years old. Enter the exact birthday below to get the precise age in years, months and days.
Born on January 1: 5 years old. Born on December 31: 4 years old until their birthday.
In 2026, everyone born in 2021 turns 5 years old. Right now, depending on whether their birthday has already passed, people born in 2021 are between 4 and 5 years old. The calculator above gives the exact age to the day.
People born in 2021 belong to the Generation Alpha (born 2013–2030), based on the commonly used Pew Research generational definitions.
In 2026, a person born in 2021 turns 5 years old. If their birthday has not yet passed, they are still 4.
Someone born in 2021 belongs to the Generation Alpha (born 2013–2030).
2021 was 5 years ago.
Someone born in 2021 will turn 100 in the year 2121.