you can't really make the cell be blank using a formula, however, the
countblank() function does count "" as a blank.
for your A10 to A40 combo try

=31-countblank(A10:A40)

this will give you the count for cells with items.



"Esrei" wrote:

I am using this formula in a range; +IF($B100,$C$3,""); if I copy paste
values this to say Data!A10:A40, why if I use counta(A10:A40), and only say
A10:A12 actual has data that I can see the answer of the count formula is
still 41.
I want the formula to leave the cell blank if false.

Thank you