The result of your conversion between Copper and grain/cubic inch appears here
To convert between Copper and Grain/cubic Inch you have to do the following:
First divide 8906 / ((0.45359237/16)*(192/175)/480)/(0.0037854118/231) = 2252.24764739
Then multiply the amount of Copper you want to convert to Grain/cubic Inch, use the chart below to guide you.
Symbol: copper
No description
Symbol: gr/in³
No description