Try this:

=LOOKUP(N5,{0,3,9,16;0,1,2,3})

--

HTH,

RD
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Please keep all correspondence within the Group, so all may benefit!
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"helpmeplease" wrote in message
...
I have a nubmer of days that needs to fall into a certain week number for
pricing calculations. If the number of days is 3:8 then it is 1 week; 9:15
is 2 weeks; and 16:21 is 3 weeks. Right now the function is able to
correctly calculate week 1 and week 2. If I try to insert the week 3
function, I get an error that there are too many arguments. "N5" is the
cell
with the number of days. I'm not very advanced with excel (it took me all
morning to get this far), so I would appreciate any help. Thanks!!

=IF(N5<9,IF(N52,1,0),IF(N5<16,IF(N58,2,0),0))