OK....how about this:

=IF(OR(B17="S",AND(B17="F",C173)),I17*K17,"")

or, maybe this
=((B17="S")+(B17="F")*(C173))*(I17*K17)

Does that help?
***********
Regards,
Ron

XL2002, WinXP


"Jos" wrote:

Hi Ron,

many thanks for your help. It works for the clause where B17="F" and C173
but i17*k17 should apply just where b17="S" (ie. C17 doesn't have to be
greater than 3 with the value "S")

Jo x

"Ron Coderre" wrote:

...and...another option:

=IF(AND(OR((B17={"S","F"})),C173),I17*K17,"")

Does that help?
***********
Regards,
Ron

XL2002, WinXP


"Jos" wrote:

I am trying to get a cell to run a multiplication calculation on two cells
(i17 and k17), where one cell (b17) contains a fixed value ("S") or b17
contains a fixed value ("F") AND c17 has a value greater than 3. can anyone
help me with the expression I should use?