Measurement of various quantities has been an integral part of our lives since ancient times. In this modern era of automation, we need to measure quantities more so than ever. So, what is the importance of Density converter? The purpose of Density converter is to provide Density in the unit that you require irrespective of the unit in which Density was previously defined. Conversion of these quantities is equally important as measuring them. Density conversion helps in converting different units of Density. Density of a substance is its mass per unit volume. It is used as a measure of the compactness of a substance.. There are various units which help us define Density and we can convert the units according to our requirement. unitsconverters.com provides a simple tool that gives you conversion of Density from one unit to another.