try this idea
=LOOKUP(F13,{"a","b","c","d";4,3,2,1})
or
=LOOKUP(F13,{"a","b","c","d";4,3,2,1})*4
--
Don Guillett
SalesAid Software

"Mike" wrote in message
...
I am trying to substitute letters for number values.
Trying to calculate my GPA while substituting an A for 4.0, (A=4.0) and
B=3.0 ...
I want to be able to see the letter grade in the sheet but be able to
multiply by the umber of credit hours. Like A*4cc=16 The A would equal 4
and
4*4=16
any help would be greatly appreciated.
thanks
mike