Physical Density Calculator

Calculate the density from mass and volume, with different units. In physics, density tells how many mass is within a space. More dense objects at the same size are heavier.
The formula for density is ρ=m/V, its symbol ρ is the greek letter rho. The common units are kilograms per cubic meter and the 1000 times as high grams per cubic centimeter. Metric and other units like pounds and cubic inches can be selected for mass and volume, for the density only the metric units are in use.

Example: iron has a density of 7.874 grams per cubic centimeters. So 50 cubic centimeters of it have a mass of about 394 grams. For water, whose density is often simplified to 1 g/cm³, 10 cubic meters have a mass of 10 metric tons.

Density is primarily determined by the material of the body. It is influenced by its temperature and sometimes by the pressure of the environment. The material also includes the structure of the body, so compact objects are of course denser than, for example, porous bodies. Porous bodies have holes that are usually filled with air, and the air is less dense than the surrounding material. The density of such a body is the average of the substances involved. This also applies to bodies made of different materials. Temperature influences density in that a lower temperature almost always results in a higher density and vice versa. Exceptions can occur during phase transitions, such as from liquid to solid. Then there are sometimes density anomalies, the best known of which is that of water, which has its greatest density at 4 degrees Celsius at normal pressure and then becomes less dense again up to the freezing point. In compressible materials, these are particularly gases, increased pressure leads to a higher density and vice versa. Liquids and solids are usually incompressible.