To calculate the age, the DATEDIF function, set to check year, determines the number of years between the date in the DOB cell and the current date.

One of the many features of Excel is being nosy. That's right, you can quickly calculate a persons age as long as you have their birth date.

To calculate the whole age from the date of birth in Excel, you can use the YEAR and NOW functions. As an example, if the date of birth is added in cell A7, then to calculate the total age from ...