-Density is the mass per volume of a substance or the weight per volume of an object. The Metric System is a type of system of measuring that uses only one root word for each basic dimension, such as, -gram for mass or -meter for distance.
-Metric system densities are usually in the units of mass per volume, such as g/cm^3 (gram per cubic centimeter). Where grams represent the units of mass and cm^3 represents the volume.
so in other words The standard metric units of density are g/cm^3
