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{{r|International System of Units}}

{{r|International System of Units}}

...'c'' describing the speed of electromagnetic radiation in vacuum. In the [[International System of Units]] the [[metre (unit)|metre]] is the distance light travels in [[classical v

...=GCPM3/> Although it was once widely used, it has never been part of the [[International System of Units]] (SI) introduced in 1960 by the 11th GCPM.<ref name=GCPM11/> <ref name=NIST-gravity>[http://physics.nist.gov/Pubs/SP330/sp330.pdf The International System of Units (SI), NIST Special Publication 330, 2008 Edition] (pdf page 57 of 77 pdf pa

The standard unit of energy in the [[International System of Units]] (SI) is the [[joule]] (J), equal to one [[watt]] [[second]]. Inversely, o ...995). [http://physics.nist.gov/Document/sp811.pdf Guide for the Use of the International System of Units (SI)] Special publication 811, [[National Institute of Standards and Techno

{{r|International System of Units}}

...'' and it is one of three such organizations established to maintain the [[International System of Units]] (SI) under the terms of the [[Metre Convention]] (French: ''Convention du The 11th CGPM in 1960 approved the name International System of Units, abbreviated as SI. At the 14th CGPM in 1971, the current version of the SI

{{r|International System of Units}}

{{r|International System of Units}}

{{r|International System of Units}}

The current international standard metric system is the [[International System of Units]] (''Système international d'unités'' or SI). It is an mks system based o ...luminous intensity and amount of substance. The second of these are the [[International System of Units#Derived units|SI derived unit]]s. These derived units are defined in terms

...considered a [[dimensionless number|dimensionless]] derived unit in the [[International System of Units]].

{{r|International System of Units}}

{{r|International System of Units}}

{{r|International System of Units}}

{{r|International System of Units}}

The '''second''' is a unit of time, currently defined in the [[International System of Units|SI]] as ''the duration of 9 192 631 770 periods of the radiation correspond

{{r|International System of Units}}

{{r|International System of Units}}

{{r|International System of Units|SI}}