Age Calculator
Enter your date of birth to see your age down to the day. Includes day of the week you were born, days until your next birthday, generation, and zodiac sign.
Your inputs
Your age
Age
30 yrs 10 mo 20 d
11,282 total days
Total months
370
Total weeks
1,611
Total hours
270,768
Total minutes
16,246,080
Born on
Thursday
Next birthday in
41 days
Zodiac
Gemini
Generation
Millennial
Frequently asked questions
How does this calculator handle leap years?
It uses calendar arithmetic — your age advances by exactly one year on each birthday, regardless of leap years. The total-days count is exact down to the day, including leap days you've lived through.
Why does my age in months differ from years × 12?
Months have variable lengths (28–31 days), so age in 'years and months' is calendar-based, not just years × 12. The calculator normalizes the date difference correctly.
What time zone is used?
Calculations use your local time zone. If you were born in a different zone and want exact precision, account for the offset when entering the time of birth.