Thanks a lot. The formula worked and your explanation was very helpful in
understanding how the functions works.

"Toppers" wrote:

this (--) converts True/False conditions to 1/0 so you can do calculations.
If, using your example, you have C1=True, E1=True and A1=20 then SUMPRODUCT
calculates 1*1*20 =20. If C1 was False then 0*1*20=0

Look here for a full explanation of SUMPRODUCT:


http://www.xldynamic.com/source/xld.SUMPRODUCT.html

HTH


"Steve 51" wrote:

This appears to work. However, I do not understand why it is necessary to put
-- before the conditions.

"Toppers" wrote:

Use SUMPRODUCT

=SUMPRODUCT--(C2:C10=condition1),--(E2:E10=condition2),A2:A10)

HTH

"Steve 51" wrote:

I am trying to sum the values in a column based on data in two other columns
of the same row meeting specific criteria.

I have data in A2:A10, C2:C10 and E2:E10 and I only want to sum the values
in A2:A10 if spedified, different criteria is met in BOTH C2:C10 and E2:E10.