Find the exact age of anyone born in 2021 — in years, months, days, and hours.
Use these related pages to compare birth years, check another year, and confirm your generation.
Someone born in 2021 is 4–5 years old in 2026, depending on whether their birthday has already passed this year. From 2021 to 2026 is exactly 5 years.
From 2021 to 2026 is exactly 5 years. If their birthday has not yet passed in 2026, they are still 4 years old.
People born in 2021 belong to Generation Alpha (2013-present). Generation Alpha are the first generation born entirely in the 21st century. They are growing up with AI, tablets, and smart devices from infancy — the most technologically immersed generation in history. In 2026, Generation Alpha children are between 1 and 13 years old.
These milestone years come directly from adding each age to 2021. Your exact birthday determines the day within each milestone year.
| Milestone | Year |
|---|---|
| Turns 18 | 2039 |
| Turns 21 | 2042 |
| Turns 30 | 2051 |
| Turns 40 | 2061 |
| Turns 50 | 2071 |
| Turns 60 | 2081 |
| Turns 65 | 2086 |
| Turns 70 | 2091 |