The stone or stone weight (abbreviation: st.) is an English and

imperial unit The imperial system of units, imperial system or imperial units (also known as British Imperial or Exchequer Standards of 1826) is the system of units first defined in the British Weights and Measures Act 1824 and continued to be developed thr ...

of mass equal to 14 pounds (6.35 kg). The stone continues in customary use in the United Kingdom for

body weight Human body weight is a person's mass or weight. Strictly speaking, body weight is the measurement of weight without items located on the person. Practically though, body weight may be measured with clothes on, but without shoes or heavy accessor ...

. 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 Metrication or metrification is the act or process of converting to the metric system of measurement. All over the world, countries have transitioned from local and traditional units of measurement to the metric system. This process began in F ...

, Europe's various "stones" were superseded by or adapted to the kilogram from the mid-19th century on.

Antiquity

The name "stone" derives from the use of stones for weights, a practice that dates back into antiquity. The Biblical law against the carrying of "diverse weights, a large and a small" is more literally translated as "you shall not carry a stone and a stone (), a large and a small". There was no standardised "stone" in the ancient Jewish world, but in Roman times stone weights were crafted to multiples of the Roman pound. Such weights varied in quality: the Yale Medical Library holds 10 and 50-pound examples of polished serpentine, while a 40-pound example at the

Eschborn Eschborn () is a town in the Main-Taunus district, Hesse, Germany. It is part of the Frankfurt Rhein-Main urban area and has a population of 21,488 (2018). Eschborn is home to numerous corporations due to its proximity to Frankfurt and relativel ...

Museum is made of sandstone.

Great Britain and Ireland

The 1772 edition of the '' Encyclopædia Britannica'' defined the stone: Encyclopædia Britannica Vol III, Edinburgh1772.

STONE also denotes a certain quantity or weight of some commodities. A stone of beef, in London, is the quantity of eight pounds; in Hertfordshire, twelve pounds; in Scotland sixteen pounds.

The Weights and Measures Act of 1824, which applied to all of the United Kingdom of Great Britain and Ireland, consolidated the weights and measures legislation of several centuries into a single document. It revoked the provision that bales of wool should be made up of 20 stones, each of 14 pounds, but made no provision for the continued use of the stone. Ten years later, a stone still varied from 5 pounds (glass) to 8 pounds (meat and fish) to 14 pounds (wool and "horseman's weight"). The Act of 1835 permitted using a stone of 14 pounds for trade but other values remained in use. James Britten, in 1880 for example, catalogued a number of different values of the stone in various British towns and cities, ranging from 4 lb to 26 lb. The value of the stone and associated units of measure that were legalised for purposes of trade were clarified by the Weights and Measures Act 1835 as follows:

England

The English stone under

law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior,Robertson, ''Crimes against humanity'', 90. with its precise definition a matter of longstanding debate. It has been vari ...

varied by commodity and in practice varied according to local standards. The

Assize of Weights and Measures Weights and measures acts are acts of the British Parliament determining the regulation of weights and measures. It also refers to similar royal and parliamentary acts of the Kingdoms of England and Scotland and the medieval Welsh states. ...

, a statute of uncertain date from , describes stones of 5 merchants' pounds used for glass; stones of 8 lb. used for

beeswax Beeswax (''cera alba'') is a natural wax produced by honey bees of the genus ''Apis''. The wax is formed into scales by eight wax-producing glands in the abdominal segments of worker bees, which discard it in or at the hive. The hive worker ...

, sugar, pepper,

alum An alum () is a type of chemical compound, usually a hydrated double sulfate salt of aluminium with the general formula , where is a monovalent cation such as potassium or ammonium. By itself, "alum" often refers to potassium alum, with the ...

cumin Cumin ( or , or Article title
) (''Cuminum cyminum'') is a

almonds,. & &

cinnamon Cinnamon is a spice obtained from the inner bark of several tree species from the genus '' Cinnamomum''. Cinnamon is used mainly as an aromatic condiment and flavouring additive in a wide variety of cuisines, sweet and savoury dishes, break ...

, and nutmegs; stones of 12 lb. used for lead; and the of lb. used for wool. In 1350 Edward III issued a new statute defining the stone weight, to be used for wool and "other Merchandizes", at 14 pounds, reaffirmed by Henry VII in 1495. In England, merchants traditionally sold potatoes in half-stone increments of 7 pounds. Live animals were weighed in stones of 14 lb; but, once slaughtered, their carcasses were weighed in stones of 8 lb. Thus, if the animal's carcass accounted for of the animal's weight, the butcher could return the dressed carcasses to the animal's owner stone for stone, keeping the

offal Offal (), also called variety meats, pluck or organ meats, is the organs of a butchered animal. The word does not refer to a particular list of edible organs, which varies by culture and region, but usually excludes muscle. Offal may also refe ...

, blood and hide as his due for slaughtering and dressing the animal.

Smithfield market Smithfield, properly known as West Smithfield, is a district located in Central London, part of Farringdon Without, the most westerly ward of the City of London, England. Smithfield is home to a number of City institutions, such as St Bartho ...

continued to use the 8 lb stone for meat until shortly before the Second World War. The '' Oxford English Dictionary'' also lists:''Oxford English Dictionary'', 1st ed.
stone, ''n.'', §14a"
Oxford University Press (Oxford), 1917.

Scotland

The Scottish stone was equal to 16 Scottish pounds (17 lb 8 oz avoirdupois or 7.936 kg). In 1661, the Royal Commission of Scotland recommended that the Troy stone be used as a standard of weight and that it be kept in the custody of the burgh of

Lanark Lanark (; gd, Lannraig ; sco, Lanrik) is a town in South Lanarkshire, Scotland, located 20 kilometres to the south-east of Hamilton. The town lies on the River Clyde, at its confluence with Mouse Water. In 2016, the town had a population of ...

. The tron (or local) stone of Edinburgh, also standardised in 1661, was 16 tron pounds (22 lb 1 oz avoirdupois or 9.996 kg). In 1789 an encyclopedic enumeration of measurements was printed for the use of "his Majesty's Sheriffs and Stewards Depute, and Justices of Peace, ... and to the Magistrates of the Royal Boroughs of Scotland" and provided a county-by-county and commodity-by-commodity breakdown of values and conversions for the stone and other measures. The Scots stone ceased to be used for trade when the Act of 1824 established a uniform system of measure across the whole of the United Kingdom, which at that time included all of Ireland.

Ireland

Before the early 19th century, as in England, the stone varied both with locality and with commodity. For example, the ''

Belfast Belfast ( , ; from ga, Béal Feirste , meaning 'mouth of the sand-bank ford') is the capital and largest city of Northern Ireland, standing on the banks of the River Lagan on the east coast. It is the 12th-largest city in the United Kingdom ...

stone'' for measuring flax equaled 16.75

avoirdupois pound The pound or pound-mass is a unit of mass used in British imperial and United States customary systems of measurement. Various definitions have been used; the most common today is the international avoirdupois pound, which is legally define ...

s. The most usual value was 14 pounds. Among the oddities related to the use of the stone was the practice in County Clare of a stone of potatoes being 16 lb in the summer and 18 lb in the winter.

Modern use

In 1965 the

Federation of British Industry The Federation of British Industries (FBI) was an employers' association in the United Kingdom. Founded by the Midlands industrialist Dudley Docker in 1916 as the United British Industries' Association, but renamed later that same year, it was ini ...

informed the British government that its members favoured adopting the metric system. The

Board of Trade The Board of Trade is a British government body concerned with commerce and industry, currently within the Department for International Trade. Its full title is The Lords of the Committee of the Privy Council appointed for the consideration of ...

, on behalf of the government, agreed to support a ten-year metrication programme. There would be minimal legislation, as the programme was to be voluntary and costs were to be borne where they fell. Under the guidance of the Metrication Board, the agricultural product markets achieved a voluntary switchover by 1976. The stone was not included in the

Directive 80/181/EEC Directive may refer to: * Directive (European Union), a legislative act of the European Union * Directive (programming), a computer language construct that specifies how a compiler should process input * "Directive" (poem), a poem by Robert Frost ...

as a unit of measure that could be used within the

EEC The European Economic Community (EEC) was a regional organization created by the Treaty of Rome of 1957,Today the largely rewritten treaty continues in force as the ''Treaty on the functioning of the European Union'', as renamed by the Lis ...

for "economic, public health, public safety or administrative purposes", though its use as a "supplementary unit" was permitted. The scope of the directive was extended to include all aspects of the EU internal market from 1 January 2010. With the adoption of metric units by the agricultural sector, the stone was, in practice, no longer used for trade; and, in the Weights and Measures Act 1985, passed in compliance with EU directive 80/181/EEC, the stone was removed from the list of units permitted for trade in the United Kingdom. In 1983, in response to the same directive, similar legislation was passed in Ireland. The Act repealed earlier acts that defined the stone as a unit of measure for trade. (British law had previously been silent regarding other uses of the stone.) The stone remains widely used in the UK and Ireland for human body weight: in those countries people may commonly be said to weigh, e.g., "11 stone 4" (11 stones and 4 pounds), rather than "72 kilograms" as in most of the other countries, or "158 pounds", the conventional way of expressing the same weight in the US. The correct plural form of ''stone'' in this context is ''stone'' (as in, "11 stone" or "12 stone 6 pounds"); in other contexts, the correct plural is ''stones'' (as in, "Please enter your weight in stones and pounds"). In Australia and New Zealand,

has almost entirely displaced stones and pounds since the 1970s. In many sports in both Britain and Ireland, such as professional boxing, wrestling, and horse racing, the stone is used to express body weights.

Elsewhere

The use of the stone in the

British Empire The British Empire was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. It began with the overseas possessions and trading posts esta ...

was varied. In Canada for example, it never had a legal status. Shortly after the United States declared independence, Thomas Jefferson, then Secretary of State, presented a report on weights and measures to the U.S. House of Representatives. Even though all the weights and measures in use in the United States at the time were derived from English weights and measures, his report made no mention of the stone being used. He did, however, propose a decimal system of weights in which his " ecimalpound" would have been and the " ecimalstone" would have been . Fotothek df tg 0000212 Waage

Before the advent of metrication, units called "stone" (german: Stein; nl, steen; pl, kamień) were used in many northwestern European countries. Its value, usually between 3 and 10 kg, varied from city to city and sometimes from commodity to commodity. The number of local "pounds" in a stone also varied from city to city. During the early 19th century, states such as the Netherlands (including Belgium) and the South Western German states, which had redefined their system of measures using the as a reference for weight (mass), also redefined their stone to align it with the kilogram. This table shows a selection of stones from various northern European cities:

Metric stone

In the Netherlands, where the metric system was adopted in 1817, the ''pond'' (pound) was set equal to a kilogram, and the ''steen'' (stone), which had previously been 8 Amsterdam pond (3.953 kg), was redefined as being 3 kg. In modern colloquial Dutch, a ''pond'' is used as an alternative for 500 grams or half a kilogram, while the ''ons'' is used for a weight of 100 grams, being ''pond''.

Notes

References

External links

UK: The Units of Measurement Regulations 1995
* https://www.britannica.com/science/stone-unit-of-weight {{Imperial units Units of mass

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

Imperial units