Gram per cubic centimetre

{{Short description|CGS unit of density}} {{onesource|date=February 2018}} {{Infobox unit | bgcolor = | name = gram per cubic centimetre | image = Density - Gram per cubic centimetre.svg | caption = Density of the cube: 1 g/cm³ | standard = [[CGS unit]] | quantity = [[Density]] | symbol = g/cm³ | units1 = [[SI unit]]s | inunits1 = {{convert|1|g/cm3|kg/m3|sigfig=1|disp=out}} | units2 = [[Imperial units|Imperial]] and [[US Customary]] units | inunits2 = {{convert|1|g/cm3|lb/ft3|sigfig=7|disp=out}} | units3 = [[MTS unit]]s | inunits3 = {{convert|1|g/cm3|t/m3|sigfig=1|disp=out}} }} 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 [[Coherence (units of measurement)|coherent unit]] in the [[CGS system]], but is not a coherent unit of the SI.

The density of [[water]] is approximately 1&nbsp;g/cm³, since the gram was originally defined as the mass of one cubic centimetre of water at its [[Properties_of_water#Density_of_water_and_ice|maximum density]] at approximately {{cvt|4|C|F}}.<ref>{{Cite web |title=What Is a Gram in Chemistry? |url=https://www.thoughtco.com/definition-of-gram-604514#:~:text=A%20gram%20is%20a%20unit,which%20water%20has%20maximum%20density). |access-date=2024-11-10 |website=ThoughtCo |language=en}}</ref>

== Conversions == * 1&nbsp;g/cm³ is equal to: *: = 1000 g/L (exactly) *: = 1000 [[kilogram per cubic metre|kg/m³]] (exactly) *: ≈ {{cvt|1.000000|g/cm3|lb/ft3|disp=out}} (approximately) *: ≈ {{cvt|1.000000|g/cm3|oz/USgal|disp=out}} (approximately) * 1 [[kilogram per cubic metre|kg/m³]] = 0.001&nbsp;g/cm³(exactly) * 1 lb/ft³ ≈ {{cvt|1.000000|lb/ft3|g/cm3|disp=out}} (approximately) * 1 oz/US gal ≈ {{cvt|1.000000|oz/USgal|g/cm3|disp=out}} (approximately)

== See also == * [[Kilogram per cubic metre]]

== References == {{reflist}}

[[Category:Units of chemical measurement]] [[Category:Units of density]] [[Category:Centimetre–gram–second system of units]]