What is difference between density & specific gravity?

Specific gravity is a measure of density relative to the density of a reference substance. The reference material could be anything, but the most common reference is pure water. read more

A: Density is the mass per unit volume of a material, while specific gravity is the density of a material divided by the density of water. read more

Density is the generalised parameter to define the distribution of any parameter with respect to length, area and volume. On the other hand mass density is the subcategory of density. read more