Age Calculator
Enter your date of birth to get your exact age in years, months and days — plus total days lived and your next birthday countdown.
Exact age
Total days
Total weeks
Total months
Next birthday
How to use
Enter your date of birth and the result appears instantly. The "Age as of" field defaults to today — change it to any past or future date to calculate age on that specific day.
The main card shows your age in years, months and days. The four smaller cards show your age in total days, total weeks, total months, and how many days remain until your next birthday.
Use cases
- Completing official forms that require exact age in years, months and days
- Checking a child's age for school enrollment, sports leagues, or medical records
- Finding out how old someone will be on a future date (wedding, graduation, retirement)
- Verifying age eligibility for contests, events, or government programs
- Planning birthday countdowns and milestone celebrations
Limitations
All calculations use the Gregorian calendar. Other calendar systems (lunar, Hebrew, Islamic, etc.) are not supported.
Times of birth are not taken into account — only the calendar date. If you were born late at night and need hour-level precision, results may vary by one day depending on your time zone.