1 g/cm³ equals exactly
1,000 kg/m³
The gram per cubic centimeter (g/cm³) and the kilogram per cubic meter (kg/m³) are both density units of the International System, but at different scales. Since 1 kg = 1,000 g and 1 m³ = 1,000,000 cm³, the ratio between the two units works out to a factor of 1,000.
To convert a measurement from g/cm³ to kg/m³, simply multiply the value by 1,000:
To convert from kg/m³ to g/cm³, perform the inverse operation, dividing by 1,000:
g/cm³ is the most common unit in chemistry and physics laboratories for expressing material density because it returns convenient, memorable numbers, while kg/m³ is the standard International System unit used in engineering and large-scale technical calculations.