How many cc is in 1 mg?

The conversion of milligrams (mg) to cubic centimeters (cc) is dependent on the density of the substance in question. To convert mg to cc, you need to know the density of the substance in milligrams per cubic centimeter (mg/cc). Once you have this density value, you can divide the mass in milligrams by the density in mg/cc to obtain the volume in cubic centimeters. Without knowing the density of the substance, it is not possible to give a direct conversion of mg to cc.