Convert from gram to microgram

Unit Definition (gram)
The metric unit of mass, called the "gram" was defined as the mass of one cubic centimeter (a cube that is 1/100 of a meter on each side) of water at its temperature of maximum density.

Unit Definition (microgram)
The microgram is a metric unit of mass equal to 0.001 milligram (mg) or one millionth of a gram. Ingredients of drugs and vitamins are often stated in micrograms.