How Old Is Someone Born in 2021?
Someone born in 2021 turns 5 in 2026. They are 4 until their birthday and 5 from their birthday onward. In 2027 they turn 6.
- Before birthday
- 4
- From birthday
- 5
- Years since 2021
- 5
- Next milestone
- 10 in 2031
Exact age for a 2021 birthday
The year is filled in. Pick the month and day for the age in years, months and days.
Your age updates as you choose. Everything is worked out in your browser; nothing is sent anywhere.
Your age
Now pick the month and day to finish your date of birth.
Age by year for someone born in 2021
The age turned on the birthday in each year. Before the birthday, subtract one.
| Year | Turns | Before birthday |
|---|---|---|
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 3 | 2 |
| 2025 | 4 | 3 |
| 2026 (this year) | 5 | 4 |
| 2027 | 6 | 5 |
| 2028 | 7 | 6 |
| 2029 | 8 | 7 |
| 2030 | 9 | 8 |
| 2031 | 10 | 9 |
| 2032 | 11 | 10 |
| 2033 | 12 | 11 |
| 2034 | 13 | 12 |
| 2035 | 14 | 13 |
| 2036 | 15 | 14 |
What year does someone born in 2021 turn…
- 10: 2031
- 13: 2034
- 16: 2037
- 18: 2039
- 21: 2042
- 30: 2051
- 40: 2061
- 50: 2071
- 60: 2081
- 65: 2086
- 70: 2091
- 80: 2101
- 90: 2111
- 100: 2121
How the age is worked out
Subtract the birth year from the current year: 2026 − 2021 = 5. That is the age reached on the birthday in 2026. Before the birthday comes round, the person is one year younger, 4. A birth year on its own can never give one age for the whole year, which is why this page shows both.
2021 was not a leap year, so no one was born on 29 February 2021.
The full method, including month ends and leap days, is on the calculation methodology page. To go from an age back to a year, use the birth year calculator.
Frequently Asked Questions
Other birth years
Back to how old am I? for an exact age today in years and days.