Convert between kg/m³, g/cm³, g/mL, lb/ft³ and other density units.
Density is mass per unit volume, and the confusion usually starts with the units. Water at 4 °C has a density of 1000 kg/m³, which is the same as 1 g/cm³, which is the same as 1 g/mL, which is the same as 1 kg/L. Those four are numerically identical because the CGS system was built so that they would be. The imperial system breaks the pattern: water is about 62.4 lb/ft³.
This converter handles the standard set of density units used in physics, chemistry, engineering and industrial specification. The factors are exact definitions — they come from the relationships between the metre, the centimetre, the litre, the kilogram, the pound and the foot.
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value_in_target = value_in_source × (source_factor / target_factor), where each factor is the number of kg/m³ in one unit.
Yes, exactly. One millilitre is defined as one cubic centimetre.
1000 kg/m³ = 1 g/cm³ = 1 g/mL = 1 kg/L at 4 °C. At room temperature it is very slightly less.
No. The conversion runs in JavaScript on your device.
Specific gravity is the ratio of a substance's density to the density of water. It is dimensionless: a material with SG 2.5 is 2.5 times denser than water, regardless of the unit system.
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