Age Difference Calculator

Enter two birthdays. You will get exact years, months, and days between them, along with total days and weeks. We also show who is older, next birthdays, and half-birthdays.

Inputs

Defaults to today in your browser time zone

Summary

Who is older
Exact difference
Optional ad slot

More details

ItemValue

Notes: For Feb 29 birthdays we use your chosen rule when finding the next birthday in non leap years.