Your exact age, down to the day
Enter your date of birth and the calculator tells you how many years, months and days old you are. For example, someone born on 25 December 1990 is, on 22 October 2026, 35 years, 9 months and 27 days old. You'll also see the months and weeks lived, the total days and hours, the day of the week you were born and how many days remain until your next birthday.
Age on another date
The “Age at the date of” box starts with today, but you can change it: it tells you how old you'll be (or were) on a specific date, such as the start of a course, an exam, a competition or an application with an age limit.
Birthdays on 29 February
If you were born on 29 February, in non-leap years we show 1 March as your next birthday. Legal conventions vary from country to country. To count the days between any two dates, use Days Between Dates.
Frequently Asked Questions
How do I calculate my exact age?
Enter your date of birth. The calculator subtracts it from today's date and shows full years, months and days.
Can I calculate age on a date other than today?
Yes. Change the “Age at the date of” field to any past or future day.
What day of the week was I born?
It appears in the result, along with total days and the time left until your next birthday.
Is my data stored?
No. The calculation runs in your browser and no date is sent or saved.