Specific Gravity Of Water Units. That is, it is not expressed in units. By definition, water has a density of 1 kg per litre at this temperature.

To find the sp gr of a solid or liquid, you must know its density in kilograms per meter cubed (kg/m 3) or in grams per centimeter cubed (g/cm 3). The formula for the specific gravity is given by. The ratio of the density of a