Density is measured in units of mass divided by units of volume. In the SI, that would be kg/m3, although kg/liter is also quite common. Any other mass divided by any other volume can also be used, for example, pound/gallon, pound/cubic foot, grams / cubic light-year, etc.
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Density is typically given in units of mass per unit volume, such as grams per cubic centimeter or kilograms per liter. It represents how much mass is contained within a specific volume of a substance.
The official SI unit is kilogram/m3, but kg/liter, or the equivalent g/cm3, is also often used.
Density is the amount of mass in a given volume of a substance. The formula for density is density = mass/volume.
The density of a medium is how much matter or mass there is in a given volume.
density
Density is the mass in a given unit of volume, meter cubed.
The formula for volume, V, when given density, ρ, and mass, m, is V = m/ρ. Alternatively, if given density, ρ, and volume, V, the formula for mass, m, is m = ρV.