Kilogram per cubic metre is the SI measure of density and is represented as kg/m³, where kg stands for kilogram and m³ stands for cubic metre. The density of water is about 1000 kg/m³ (and is exactly this at 277 K), since a cubic metre of water weighs about a tonne.
"kg/m³" is sometimes equivalently written as "kg m-3".
To convert from g/cm³ to kg/m³, multiply by 1000; divide by 1000 for the opposite conversion. A gram per litre is identical in value to kg/m3.
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