=SUMPRODUCT(--(A1:A5=1),--(B1:B5=2))

Or

=SUMPRODUCT(--(A1:A5=C1),--(B1:B5=D1))

where C1=1, D1=2

"talderman" wrote:

I have 2 columns of numbers I would like to know how many times the value in
column A meets a certain value in column B.
ex)
column A column B
row1 1 2
row2 1 2
row3 1 2

How many times does the value 1 in column A match the corrspond value of 2
in column B. For clarity in this example it occurs 3 times?
--
Tim