Calculate the precise age difference between two people in years and months, plus the gap in days and weeks.
How it works
- Enter the birth date for the first person.
- Enter the birth date for the second person.
- Review the age gap output in total years, months, and days.
Frequently asked questions
Does the order of dates matter?
No — the tool uses the absolute difference, so it works regardless of which date is earlier.
How precise is the years-and-months figure?
It is a close approximation using average month and year lengths; the days figure is exact.
Can I compare any two dates?
Yes — though labeled for birth dates, it works for any pair of dates.