Age calculator
Find your exact age – or the age of anything – on any date, in years, months and days.
How it works
The calculator counts full years and months between the two dates, then the remaining days, borrowing days from the previous month when needed.
Total days is the exact number of days between the two dates. For birthdays on 29 February, the next birthday in a non-leap year is counted on 1 March.
Frequently asked questions
How is age calculated?
Age is the number of complete years since the date of birth; months and days are counted from the last birthday.
How many days old am I?
Enter your date of birth: the calculator shows the total number of days lived up to today or any date you choose.