The SI unit of density is the kilogram per cubic meter [kg/m 3]. The Gaussian unit of density is the gram per cubic centimeter which is equivalent to a gram per milliliter [1 g/cm 3 = 1 g/mL]. Density is defined as the mass per unit volume of a substance. The symbol for density is ρ. Mathematically, density is defined as ρ = 𝑚 𝑉 The SI unit of density is kg/m 3. It is defined as the mass of an object divided by its volume. The SI unit of density is kilograms per cubic meter (kg/m³). Density is an important property of matter because it can be used to determine the mass of an object without having to measure its volume. Density is the measurement of the mass of an object per unit volume. It is represented by the letter D and the symbol ρ, ‘rho’. The SI unit of density is kg/m³ – unit kilogram per cubic meter. Density can be calculated by its formula which is mass divided by volume. For example, a homogeneous material like ice has the same density throughout as its molecules are closely packed together. Read More: Surface Tension
