How old am I?
Enter your birth date and, optionally, a reference date.
Your exact age is —
—total days
—total hours
—total weeks
—total months
Next birthday: — (in — days)
How age is calculated
Age is more than just years. This calculator gives you the full breakdown — years, months and days — using exact calendar arithmetic, so a birthday on the 15th is counted precisely. It also shows your age in total days, hours, weeks and months, which is useful for milestone tracking, medical forms and fun trivia.
Next-birthday countdown
The calculator automatically finds your next upcoming birthday and tells you exactly how many days remain, so you never lose track of the celebration.