How to Calculate age from date of birth in Excel

In following example, as you can see in the photo, Find ages from date of birth can be identified by the YEARFRAC and TODAY, and INT functions.

=INT(YEARFRAC("1/1/2000",TODAY())) ----->>>>answer is  23
=INT(YEARFRAC("10/5/2010",TODAY())) ----->>>>answer is  12
=INT(YEARFRAC("11/9/2020",TODAY())) ----->>>>answer is  2

YEARFRAC Function

The YEARFRAC function is one of the Date & Time functions of Excel.

It Returns the year fraction representing the number of whole days between start_date and end date.

YEARFRAC arguments

1. End date section is a serial date number that represents the start date.

2. Start date section is a serial date number that represents the end date.

3. Basis section is the type of day count basis to use.