Convert metric to us standard

I am trying to have user input a numeric field and then unit of measure table drop down to use CM to FT or M to FT or whatever.

How do I build the formula for the Equation Field. Nothing seems to work.


Field below is Cargo Length Feet
{Cargo Table Units of Measure.Unit of Measure ID} = 1? {Cargo Length} * 0.0328084
{Cargo Table Units of Measure.Unit of Measure ID} == 1? {Cargo Length} * 0.0328084
{Cargo Table Units of Measure.Unit of Measure ID} contains 1? {Cargo Length} * 0.0328084

I have also tried to put this into Conditional Rules but does not work here either.