Quick guide
Try an example
You enter
- Birth date
2000-06-15
- Age on this date
2025-08-20
You get
- Years
25
- Months
2
- Days
5
How it works & limits
Choose a birth date and the date you want to check. If a month has no matching day, the calculation uses its last day.
Choose dates between years 0001 and 9999.