The below will return the sum for the month of May

=SUM(IF(MONTH(A2:A100)=5,B2:B100))

Suppose in C2 you have date entered formated to display January, the below
should return the total for January
=SUM(IF(MONTH(A2:A100)=Month(c2),B2:B100))

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---------------
Jacob Skaria


"jengy1" wrote:

i am trying to calulate the total intake for each month
ie january = 10
february = 6
march = 10

column a column b
date intake
01/01/09 10
01/03/09 2
11/02/09 6
12/03/09 7
12/03/09 1

please help