Return a persons age in years

Cell "A3" displays the date the person was born.

	A
1	=TODAY() = 26/05/2025
2	=NOW() = 26/05/2025
3	=DATE(1990, 1, 1) = 01/01/1990
4	=INT(YEARFRAC(TODAY(), A3, 1)) = 35
5	=DATEDIF(A3, TODAY(), "y") = 35
6	=DATEDIF(A3, NOW(), "y") = 35

Built-in Functions

NOW - The date serial number of the current system date and time.
TODAY - The date serial number representing today's date.
TEXT - The number as a formatted text string.
YEARFRAC - The number of years as a decimal between two dates.
DATEDIF - (Compatibility) The number of days, months or years between two dates.
DATE - The date as a date serial number given a year, month, day.
INT - The number rounded down to the nearest integer.

User Defined Function

AGE - Returns the age of a person given a birthday.

Related Formulas

Add years to a date
Number of months between 2 dates
Number of years months days from a date
Returns a persons age in years months days