=SUM(IF(MOD(A1:A100,2)=0,A1:A100))

for even numbers, and

=SUM(IF(MOD(A1:A100,2)=1,A1:A100))

for odd numbers.

These are array formulae, so commit with Ctrl-Shift-Enter.

--

HTH

RP
(remove nothere from the email address if mailing direct)


"Steve E" <Steve wrote in message
...
I need help with the formula to sum up only the odd or even numbers in a
column. I appreciate any help that you can provide.

Thanks,
Steve