You can best build a CulMeasures, e.g.,module with public functions defined for each expected conversion. I assume you want to relate culinary measures to each other, e.g., teaspoons in a tablespoon, cups in a pint, etc., although you can do the same thing to convert grams to ounces, fluid ounces to cups, and like that. Sample code follows:
Public Function PintsFromCups(byval varCups as Variant) as Variant
PintsFromCups=nz(varCups)/2
End Function
Of course, you can sex this up some, using a single function and optional parameter sets, or a key word to specify the conversion set, but I think functions named like the behave make it easier to use them in real life.