How Old Is Someone Born in 2021?

Last updated: June 15, 2026

Calculated for June 15, 2026

Someone born in 2021 is 4–5 years old today.

If they have already had their birthday in 2026, they are 5 years old. If not, they are 4 years old. This calculator updates daily.

Birth year
2021
Current age
4–5 years
Generation
Generation Alpha
Age in 2030
9
Age in 2050
29

Calculator

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How it's calculated

To find the age of someone born in 2021: subtract 2021 from today's year (2026) — that gives 5 years. If their birthday has not yet occurred this year, subtract one more year for 4 years.

Nearby birth years

See how old someone from a nearby birth year is today.

Nearby birth years
Birth yearCurrent age
201411–12 years
201510–11 years
20169–10 years
20178–9 years
20187–8 years
20196–7 years
20205–6 years
20214–5 years
20223–4 years
20232–3 years
20241–2 years
20250–1 years
20260–0 years

Frequently asked questions

When will someone born in 2021 turn 18?

Someone born in 2021 will turn 18 on their birthday in 2039. For reference, they will be 9 years old in 2030, 19 years old in 2040, and 29 years old in 2050.

How old was someone born in 2021 in 2022?

Someone born in 2021 was 1 years old for most of 2022. Exact age depends on whether their birthday had occurred yet in 2022.

What generation is someone born in 2021?

Someone born in 2021 belongs to Generation Alpha. Pew Research defines Generation Alpha as people born 2013–2024. Generational bands are approximate — different sources draw the boundaries a year or two apart.

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