How Old Am I If I Was Born In…?
Enter your year of birth to see how old you are this year — or how old you will be in any other year.
| Born in | Age after the birthday | Age before the birthday |
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Dates use your device’s calendar. If you were born on 29 February, the calculator counts your birthday on 28 February in years that are not leap years.
Age from the year of birth
before your birthday this year: age = current year − year of birth − 1
Example: born in 1990, you turn 36 in 2026. Before your birthday in 2026 you are still 35.
Why the answer can be off by one
Knowing only the year is not enough to know the exact age: someone born in December 1990 is 35 for most of 2026, while someone born in January 1990 is 36 for almost all of it. Choose Already had it or Not yet to get the right number — or use the age calculator with the full date of birth.
Age table by year of birth
Under the calculator you find every year of birth for the last 100 years with the age before and after that year’s birthday. Change Age in the year to see the table for a past or future year.
Frequently asked questions
How old am I if I was born in 2000?
In 2026 you turn 26. Before your birthday in 2026 you are 25.
How old am I if I was born in 1990?
In 2026 you turn 36. Before your birthday in 2026 you are 35.
How old am I if I was born in 1980?
In 2026 you turn 46. Before your birthday in 2026 you are 45.
What year will I turn 18?
Add 18 to your year of birth. Someone born in 2010 turns 18 in 2028.