Fun Age Calculator
How Many Days Old Am I?
Enter your birth date and count every calendar day you have been alive, plus your full weeks, approximate hours and next 1,000-day milestone.
How many days have I been alive?
How many days have I been alive?
Your days old is the number of calendar days between your birth date and today. It includes leap days that occurred during your lifetime.
Why days old can be more interesting than years
Birthdays happen once a year, but day milestones arrive at unexpected times. Your 10,000th day, 15,000th day or 20,000th day can land months away from your regular birthday.
Use the age milestone calculator to find those dates.
Are hours and minutes exact?
On this page they are approximate because only your birth date is entered. For a more precise elapsed-time result, use the main age calculator and add your birth time.
Calendar days and elapsed time are not quite the same thing
This page is built around calendar days. It counts from one date to another, including February 29 when a leap year occurs. That makes it a natural answer for searches such as “how many days old am I?” or “how many days have I been alive?”
Hours and minutes are shown as estimates because the calculator does not ask for your birth time. If you were born late in the evening, your exact elapsed hours will be different. The main exact age calculator lets you add a birth time when you know it.
What is my next 1,000-day birthday?
The result also finds the next age that is a multiple of 1,000 days. These milestones move through the calendar instead of staying on your usual birthday, which makes them a fun date to discover.
Common questions
How do I find how many days old I am?
Enter your birth date. The calculator counts the calendar days from that date to today.
Do leap years count?
Yes. Leap days are part of the elapsed calendar time and are included automatically.
How many days have I been alive?
Your total days alive is the number shown as your days old result.