Age Calculator
Find your exact age in years, months and days from your date of birth.
Enter a date of birth to see the result.
How it works
Enter a date of birth and, optionally, a different reference date. The calculator counts whole years, then whole months, then whole days between the two dates — the same way you would count age by hand, just instantly.
Frequently asked questions
- Does this account for leap years?
- Yes. The calculator works from actual calendar dates, so leap years and varying month lengths are handled automatically.
- Can I calculate someone's age on a future or past date?
- Yes — change the "Age as of" field to any date to see the age at that point in time, not just today.