Age calculator

Calculate completed years from a birth date on the date you choose.

For February 29 birthdays, the anniversary is March 1 in non-leap years.

Completed age
—years

Check the input values.

Your inputs stay on this device.

How to use
  1. Enter a birth date.
  2. Choose the date on which to measure age.
  3. Read the age in completed years.

The reference date starts at today. Change it to check age on an application date, a past event, or a future birthday.