Calculate your exact age
Working out age by hand is error-prone because months have different lengths and leap years add days. This calculator gives your exact age in years, months and days, plus fun and useful extras: total months, weeks, days and hours lived, days left until your next birthday, the weekday you were born, and your birth date in the Hijri calendar.
How to use it
- Enter your date of birth.
- The “as of” date defaults to today; change it to find your age on a specific date, such as an application deadline.
- Results appear instantly.
Practical uses
- Check age requirements for school, university, jobs and competitions.
- Track a baby’s exact age in months for milestones and vaccinations.
- Find a Hijri birth date for official documents in some countries.
- Measure the gap between any two dates.
Special cases
If you were born on 29 February, the calculator treats 28 February as your birthday in non-leap years. Hijri dates use the browser’s Umm al-Qura calendar and may differ by a day from local moon sighting. To convert any date between calendars, use our Hijri Date Converter.