International Bureau of Weights and Measures

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International Bureau of Weights and Measures

Metre Convention signatories
Abbreviation	BIPM (from French name)
Formation	20 May 1875; 149 years ago (1875-05-20)
Type	Intergovernmental
Location	Saint-Cloud, France
Coordinates	48°49′45.55″N 2°13′12.64″E / 48.8293194°N 2.2201778°E / 48.8293194; 2.2201778
Region served	Worldwide
Membership	64 member states 36 associate states (see the list)
Official language	French and English
Director	Martin Milton
Website	www.bipm.org

The International Bureau of Weights and Measures (French: Bureau international des poids et mesures, BIPM) is an intergovernmental organisation, through which its 59 member-states act on measurement standards in areas including chemistry, ionising radiation, physical metrology, as well as the International System of Units (SI) and Coordinated Universal Time (UTC).^[1] It is based in Saint-Cloud, near Paris, France. The organisation has been referred to as IBWM (from its name in English) in older literature.^{[note 1]}

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