The gram per cubic centimetre is a unit of density in International System of Units (SI), and is commonly used in chemistry. Its official SI symbols are g/cm3, g·cm−3, or g cm−3. It is equal to the units gram per millilitre (g/mL) and kilogram per litre (kg/L). It is defined by dividing the gram, a unit of mass, by the cubic centimetre, a unit of volume. It is a coherent unit in the CGS system, but is not a coherent unit of the SI.