Kilogram per cubic metre

Kilogram per cubic metre (kg/m³) is a unit of density in the International System of Units (SI). It measures the mass of a substance (in kilograms) per unit volume (in cubic metres). Density is an important physical property used in various fields, including physics, engineering, and materials science. For example: - Water has a density of approximately 1,000 kg/m³ at 4 degrees Celsius. - Air at sea level has a density of about 1.