<P> It is now known that the density of water also depends on the isotopic ratios of the oxygen and hydrogen atoms in a particular sample . Modern measurements of Vienna Standard Mean Ocean Water, which is pure distilled water with an isotopic composition representative of the average of the world's oceans, show it has a density of 6999999975000000000 ♠ 0.999975 ± 6994100000000000000 ♠ 0.000001 kg / L at its point of maximum density (3.984 ° C) under one standard atmosphere (760 Torr, 101.325 kPa) of pressure . </P> <P> The litre, though not an official SI unit, may be used with SI prefixes . The most commonly used derived unit is the millilitre, defined as one - thousandth of a litre, and also often referred to by the SI derived unit name "cubic centimetre". It is a commonly used measure, especially in medicine, cooking and automotive engineering . Other units may be found in the table below, where the more often used terms are in bold . However, some authorities advise against some of them; for example, in the United States, NIST advocates using the millilitre or litre instead of the centilitre . </P> <Table> <Tr> <Th> Multiple </Th> <Th> Name </Th> <Th_colspan="2"> Symbols </Th> <Th_colspan="2"> Equivalent volume </Th> <Td> </Td> <Th> Submultiple </Th> <Th> Name </Th> <Th_colspan="2"> Symbols </Th> <Th_colspan="2"> Equivalent volume </Th> </Tr> <Tr> <Td> 10 L </Td> <Td> litre </Td> <Td> l </Td> <Td> </Td> <Td> dm </Td> <Td> cubic decimetre </Td> <Td_colspan="4"> </Td> <Td_colspan="2"> </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> decalitre </Td> <Td> dal </Td> <Td> daL </Td> <Td> 10 dm </Td> <Td> ten cubic decimetres </Td> <Td> 10 L </Td> <Td> decilitre </Td> <Td> dl </Td> <Td> dL </Td> <Td> 10 cm </Td> <Td> hundred cubic centimetres </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> hectolitre </Td> <Td> hl </Td> <Td> hL </Td> <Td> 10 dm </Td> <Td> hundred cubic decimetres </Td> <Td> 10 L </Td> <Td> centilitre </Td> <Td> cl </Td> <Td> cL </Td> <Td> 10 cm </Td> <Td> ten cubic centimetres </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> kilolitre </Td> <Td> kl </Td> <Td> kL </Td> <Td> m </Td> <Td> cubic metre </Td> <Td> 10 L </Td> <Td> millilitre </Td> <Td> ml </Td> <Td> mL </Td> <Td> cm </Td> <Td> cubic centimetre </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> megalitre </Td> <Td> Ml </Td> <Td> ML </Td> <Td> dam </Td> <Td> cubic decametre </Td> <Td> 10 L </Td> <Td> microlitre </Td> <Td> μl </Td> <Td> μL </Td> <Td> mm </Td> <Td> cubic millimetre </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> gigalitre </Td> <Td> Gl </Td> <Td> GL </Td> <Td> hm </Td> <Td> cubic hectometre </Td> <Td> 10 L </Td> <Td> nanolitre </Td> <Td> nl </Td> <Td> nL </Td> <Td> 10 μm </Td> <Td> million cubic micrometres </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> teralitre </Td> <Td> Tl </Td> <Td> TL </Td> <Td> km </Td> <Td> cubic kilometre </Td> <Td> 10 L </Td> <Td> picolitre </Td> <Td> pl </Td> <Td> pL </Td> <Td> 10 μm </Td> <Td> thousand cubic micrometres </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> petalitre </Td> <Td> Pl </Td> <Td> PL </Td> <Td> 10 km </Td> <Td> thousand cubic kilometres </Td> <Td> 10 L </Td> <Td> femtolitre </Td> <Td> fl </Td> <Td> fL </Td> <Td> μm </Td> <Td> cubic micrometre </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> exalitre </Td> <Td> El </Td> <Td> EL </Td> <Td> 10 km </Td> <Td> million cubic kilometres </Td> <Td> 10 L </Td> <Td> attolitre </Td> <Td> al </Td> <Td> aL </Td> <Td> 10 nm </Td> <Td> million cubic nanometres </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> zettalitre </Td> <Td> Zl </Td> <Td> ZL </Td> <Td> Mm </Td> <Td> cubic megametre </Td> <Td> 10 L </Td> <Td> zeptolitre </Td> <Td> zl </Td> <Td> zL </Td> <Td> 10 nm </Td> <Td> thousand cubic nanometres </Td> </Tr> <Tr> <Td> 10 L </Td> <Td> yottalitre </Td> <Td> Yl </Td> <Td> YL </Td> <Td> 10 Mm </Td> <Td> thousand cubic megametres </Td> <Td> 10 L </Td> <Td> yoctolitre </Td> <Td> yl </Td> <Td> yL </Td> <Td> nm </Td> <Td> cubic nanometre </Td> </Tr> </Table> <Tr> <Th> Multiple </Th> <Th> Name </Th> <Th_colspan="2"> Symbols </Th> <Th_colspan="2"> Equivalent volume </Th> <Td> </Td> <Th> Submultiple </Th> <Th> Name </Th> <Th_colspan="2"> Symbols </Th> <Th_colspan="2"> Equivalent volume </Th> </Tr>

1 kilolitre is equal to how many litre
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