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Formula To Calculate Age Based On Date Of Birth


I need a formula to calculate age today based on a person's date of birth. I used to know this but I have not used it for awhile.


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Is it possible to convert a students DoB into their term of birth (ToB).

I.e. a student has the DoB of 1/1/2001 which would mean their ToB would be 'Spring'

I suppose what I'm after is...
If a DoB falls into one of three groups
1/1/year to 30/4/year = 'Spring'
1/5/year to 31/8/year = 'Summer'
1/9/year to 31/12/year = 'Autumn'

The year of birth is irrelevant, it's the month which determines the 'term of birth' (Spring/Summer/Autumn).

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If somebody reaches 21 -1 -2 -3 months this should show different colors in the persons row in a particular column. The function used for the AGE is fund on ozgrid.com: =DATEDIF(H4,TODAY(),"y")&" years "&DATEDIF(H4,TODAY(),"ym")&" months "&DATEDIF(H4,TODAY(),"md")&" days"

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http://www.cpearson.com/excel/datedif.htm
--

"malvis" wrote:

> Is there a formula that can calculate age when given only Date of Birth?

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how to calculate the age from the date of birth and was given these two responses

1) I may be way off here but all that coding seems a waste !

I have in cell A1 = BLANK <--- enter your DOB here

I have in cell A2 =NOW()

in cell A3 do = A2-A1

Format that to General

In Cell A4 do =A3/365

Format that to no deciamal places and you get the age - this one is adding a year to everyones age?

2) Alternatively, if the DOB is A1 :-

=INT(YEARFRAC(A1,TODAY(),1)) - This one does not work it is saying there is an error with the "yearfrac"?

It is also when I am trying to put these into a pivot table, the pivot table is listing these down to 5 decimal places( when I have formatted to zero)????

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