The result of your conversion between nanogram/milliliter and grain/cubic inch appears here
To convert between Nanogram/milliliter and Grain/cubic Inch you have to do the following:
First divide 1.0E-12/0.000001 / ((0.45359237/16)*(192/175)/480)/(0.0037854118/231) = 0.00000025
Then multiply the amount of Nanogram/milliliter you want to convert to Grain/cubic Inch, use the chart below to guide you.
Symbol:
No description
Symbol:
No description