How to calculate your age
- Enter your date of birth.
- Leave the second date as today, or change it to find an age on any past or future date.
- Read the age in years, months and days and the days until your next birthday.
Frequently asked questions
How is age calculated?
Count the full years since the birth date, then the full months, then the remaining days. A year only counts once the birthday has passed.
What if I was born on February 29?
In years without February 29, the calculator treats February 28 as your birthday, which is the common convention.
Can I find someone's age on a past date?
Yes. Change the second date to any day, for example to check an age at graduation or on a contract date.
Is my date of birth stored?
No. The calculation runs in your browser and nothing is sent anywhere.