Age Calculator Birthday

Enter your date of birth
Month   Date  Year  

You have been living for:
In months:
In weeks:  
In days:    
In hours:  
In minutes:
In seconds:
In Milliseconds:
Your next birthday will be in:

Enter your date of birth into the birthday calculator and discover what day you were born on and how long you've been alive.

The calculated age will be displayed in years, months, weeks, days, hours, minutes, and seconds.

Table of contents:

On what day was I born?

Use the birthday calculator to find out how many hours, days, months and years you've been alive for and what day you were born on. Simply enter your date of birth into the calculator and click the 'calculate' button.

How many days until my birthday?

Use the age calculator to work out the number of days until your next birthday. We calculate this based upon your birth date and today's date.

East Asian age reckoning

East Asian age reckoning originated in China and continues in limited use there along with Tibet and Japan, but is still common in Korea. People are born at the age of one, i.e. the first year of lifetime using ordinal number (instead of "zero" using cardinal number), and on Chinese New Year or New Year's Day one year is added to their age. Since age is incremented at the beginning of the lunar or solar year, rather than on the anniversary of a birthday, people may be one or two years older in Asian reckoning than in the international age system.