Density is a physical property defined as an object's mass divided by its volume. To determine density, it is best to measure an object's mass and volume separately. Because different substances have different densities, density can be used to help identify a material. Comparing the densities of two materials can also predict how substances will interact. Water has a density of 1,000 kg/m3 at standard temperature and pressure (STP) and is used as the common standard.
Use the following calculator to convert a known density into various units.