Editing Kilogram per cubic metre

{{short description|SI derived unit of density}}
{{Infobox unit
| bgcolor = 
| name = Kilogram per cubic metre
| image = Density - Kilogram per cubic metre.svg
| caption = Density of the cube: 1&nbsp;kg/m<sup>3</sup>
| standard = [[SI]]
| quantity = [[Density]]
| symbol = kg/m<sup>3</sup>
| extralabel = 
| extradata = 
| units1 = [[Imperial units|Imperial]] and [[US Customary]] units
| inunits1 = {{convert|1|kg/m3|lb/ft3|sigfig=7|disp=out}}
| units2 = [[CGS unit]]s
| inunits2 = {{convert|1|kg/m3|g/cm3|sigfig=1|disp=out}}
| units3 = [[MTS unit]]s
| inunits3 = {{convert|1|kg/m3|t/m3|sigfig=1|disp=out}}
}}
The '''kilogram per cubic metre''' (symbol: '''kg·m<sup>−3</sup>''', or '''kg/m<sup>3</sup>''') is the unit of [[density]] in the [[International System of Units]] (SI). It is defined by dividing the SI unit of [[mass]], the [[kilogram]], by the SI unit of [[volume]], the [[cubic metre]].<ref>{{SIbrochure8th}}</ref>

==Conversions==
*1 kg/m<sup>3</sup> = 1 g/[[liter|L]] (exactly)<ref>{{cite web |title=1 gram per liter in kg/m^3|url=https://www.wolframalpha.com/input?i=1+gram+per+liter+in+kg%2Fm%5E3 |website=Wolfram Alpha |access-date=31 March 2022}}</ref>
*1&nbsp;kg/m<sup>3</sup> = 0.001 [[gram per cubic centimetre|g/cm<sup>3</sup>]] (exactly)<ref name=UnitsCounter>{{cite web |url=https://www.unitscounter.com/density/kilogram-to-cubic-meter%20?hodnota=1.0 |title=Kilogram per cubic meter |website=UnitsCounter.com |accessdate=2021-12-11}}</ref>
*1&nbsp;kg/m<sup>3</sup> ≈ 0.06243 [[pound (mass)|lb]]/[[foot (unit)|ft]]<sup>3</sup> (approximately)
*1&nbsp;kg/m<sup>3</sup> ≈ 0.1335 [[ounce|oz]]/[[Gallon#US liquid gallon|US gal]] (approximately)
*1&nbsp;kg/m<sup>3</sup> ≈ 0.1604 oz/[[Gallon#Imperial gallon|imp gal]] (approximately)
*1 [[gram per cubic centimetre|g/cm<sup>3</sup>]] = 1000&nbsp;kg/m<sup>3</sup> (exactly)
*1 lb/ft<sup>3</sup> ≈ 16.02&nbsp;kg/m<sup>3</sup> (approximately)
*1 oz/(US gal) ≈ 7.489&nbsp;kg/m<sup>3</sup> (approximately)
*1 oz/(imp gal) ≈ 6.236&nbsp;kg/m<sup>3</sup> (approximately)

==Relation to other measures==
The density of water is about 1000&nbsp;kg/m<sup>3</sup> or 1 g/cm<sup>3</sup>, because the size of the gram was originally based on the mass of a cubic centimetre of water. 

In [[chemistry]], g/cm<sup>3</sup> is more commonly used.

==See also==
* [[Gram per cubic centimetre]]

==References==
{{reflist}}

==External links==
*[http://www.bipm.org/en/si/si_brochure/chapter2/2-1/kilogram.html Official BIPM definition of the kilogram]
*[https://web.archive.org/web/20031029003927/http://www.bipm.org/en/si/si_brochure/chapter2/2-1/metre.html Official BIPM definition of the metre]

{{DEFAULTSORT:Kilogram Per Cubic Metre}}
[[Category:SI derived units]]
[[Category:Units of chemical measurement]]
[[Category:Units of density]]