The result of your conversion between cawney and carreau appears here
To convert between Cawney and Carreau you have to do the following:
First divide (4/3) * (0.09290304*43560) / 12900 = 0.41827973
Then multiply the amount of Cawney you want to convert to Carreau, use the chart below to guide you.
Symbol: cawney
No description
Symbol: carreau
No description