Stone (unit)

The stone or stone weight (abbreviation: st.) is an English and British imperial unit of mass equal to 14 pounds (6.35 kg). The stone continues in customary use in the United Kingdom for body weight.

This article is about the European unit of mass. For Asian uses of 'stone', see Picul. For the material made of rock, see Rock (geology). For other uses of the word "Stone", see Stone (disambiguation).

Stone
A 16th-century bronze 1 stone weight emblazoned with the English coat of arms
General information
Unit systemBritish imperial
Unit ofMass
Abbreviationst

England and other Germanic-speaking countries of Northern Europe formerly used various standardised "stones" for trade, with their values ranging from about 5 to 40 local pounds (roughly 3 to 15 kg) depending on the location and objects weighed. With the advent of metrication, Europe's various "stones" were superseded by or adapted to the kilogram from the mid-19th century on.

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