 This article relies largely or entirely upon a single source. Please help improve this article by introducing appropriate citations of additional sources.  The acre is a unit of area in a number of different systems, including the imperial and U.S. customary systems. The most commonly used acres today are the international acre and, in the United States, the survey acre. Look up Acre, acre in Wiktionary, the free dictionary. ...
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The former Weights and Measures office in Middlesex, England. ...
This article is about the physical quantity. ...
This article is about post1824 imperial units, see also English unit, U.S. customary units or Avoirdupois. ...
U.S. customary units, also known in the United States as English units[1] (but see English unit) or standard units, are units of measurement that are currently used in the USA, in some cases alongside units from SI (the International System of Units â€” the modern metric system). ...
One international acre is equal 4046.8564224 m^{2}. One U.S. survey acre is equal to ^{62,726,400,000}⁄_{15,499,969} = 4046.8726098 m^{2}. A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. ...
The area of one acre (red) overlaid on an American football field One acre comprises 4,840 square yards or 43,560 square feet (which can be easily remembered as 44,000 square feet, less 1%). Because of alternative definitions of a yard or a foot, the exact size of an acre also varies slightly. Originally, an acre was a selion of land one furlong long and one chain wide. However, an acre is a measure of area, and has no particular width, length or shape. Image File history File links This is a lossless scalable vector image. ...
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A square foot is by definition the area enclosed by a square with sides each 1 foot (unit of length) long. ...
Selion is a mediaeval open strip of land or small field used for growing crops, usually owned or rented to peasants. ...
â€¹ The template below (Unit of length) is being considered for deletion. ...
As a unit of measurement within the Imperial system, the chain (surveyors chain, Gunters chain) is defined as 22 yards, 66 feet, or four rods. ...
The acre is often used to express areas of land. In the metric system, the hectare is commonly used for the same purpose. An acre is approximately 40% of a hectare. The International System of Units (symbol: SI) (for the French phrase Syst me International dUnit s) is the most widely used system of units. ...
A hectare (symbol ha) is a unit of area, equal to 10 000 square metres, commonly used for measuring land area. ...
One acre is 90.75 yards of a 53.33yardwide American football field. The full field, including the end zones, covers approximately 1.32 acres. United States simply as football, is a competitive team sport that is both fastpaced and strategic. ...
International acre
In 1958, the United States and countries of the Commonwealth of Nations defined the length of the international yard to be 0.9144 meters.^{[1]} Consequently, the international acre is exactly 4046.8564224 square meters. The Commonwealth of Nations as of 2007 Headquarters Marlborough House, London, UK Official languages English Membership 53 sovereign states Leaders  Queen Elizabeth II  SecretaryGeneral Kamalesh Sharma Appointed 24 November 2007 Establishment  Balfour Declaration 18 November 1926  Statute of Westminster 11 December 1931  London Declaration 28 April 1949 Area  Total...
A yard (abbreviation: yd) is the name of a unit of length in a number of different systems, including English units, Imperial units, and United States customary units. ...
The metre, or meter (symbol: m) is the SI base unit of length. ...
A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. ...
United States survey acre The United States survey acre is approximately 4046.873 square meters; its exact value (4046+^{13,525,426}⁄_{15,499,969} m²) is based on an inch defined by 1 meter = 39.37 inches exactly, as established by the Mendenhall Order. It is the standard acre in the United States, but the fractional difference from the international acre is only 4 millionths, or 4 tenthousandths of one percent. A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. ...
The Mendenhall Order marked a decision to change the USAs weights and measures from the customary system based on that of England to the metric system. ...
Equivalence to other units of area 1 international acre is equal to the following metric units: 1 United States survey acre is equal to: A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. ...
A hectare (symbol ha) is a unit of area, equal to 10 000 square metres, commonly used for measuring land area. ...
1 acre (both variants) is equal to the following customary units: A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. ...
A hectare (symbol ha) is a unit of area, equal to 10 000 square metres, commonly used for measuring land area. ...
 66 feet × 660 feet (43,560 square feet)
 4840 square yards
 160 perches. A perch is equal to a square rod (1 square rod is 0.00625 acre)
 10 square chains
 4 roods
 A chain by a furlong (chain 22 yards, furlong 220 yards)
 0.0015625 square mile (1 square mile is equal to 640 acres)
1 international acre is equal to the following Indian unit: A square foot is by definition the area enclosed by a square with sides each 1 foot long. ...
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A perch is equal to a square rod. ...
A rod is a unit of length, equal to 5. ...
As a unit of measurement within the Imperial system, the chain (surveyors chain, Gunters chain) is defined as 22 yards, 66 feet, or four rods. ...
A rood is an old English ( AngloSaxon) unit equal to quarter an acre, i. ...
A square mile is an English unit of area equal to that of a square with sides each 1 statute mile (â‰ˆ1,609 m) in length. ...
In India, Cent is a measure of area. ...
Historical origin The word "acre" is derived from Old English æcer (originally meaning "open field", cognate to Swedish "åker", German Acker, Latin ager and Greek αγρος (agros). Old English (also called AngloSaxon[1], Old English: ) is an early form of the English language that was spoken in parts of what is now England and southern Scotland between the midfifth century and the midtwelfth century. ...
Look up cognate in Wiktionary, the free dictionary. ...
For other uses, see Latin (disambiguation). ...
The acre was selected as approximately the amount of land tillable by one man behind an ox in one day. This explains one definition as the area of a rectangle with sides of length one chain and one furlong. A long narrow strip of land is more efficient to plough than a square plot, since the plough does not have to be turned so often. The word "furlong" itself derives from the fact that it is one furrow long. Binomial name Bos taurus Linnaeus, 1758 Cattle are domesticated ungulates, a member of the subfamily Bovinae of the family Bovidae. ...
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As a unit of measurement within the Imperial system, the chain is defined as 22 yards, 66 feet, or 4 rods. ...
â€¹ The template below (Unit of length) is being considered for deletion. ...
fur·row Pronunciation: f&r()O, f&()rO Function: noun Etymology: Middle English furgh, forow, from Old English furh; akin to Old High German furuh furrow, Latin porca 1 a : a trench in the earth made by a plow b : plowed land : FIELD 2 : something that resembles the track of...
Before the enactment of the metric system, many countries in Europe used their own official acres. These were differently sized in different countries, for instance, the historical French acre was 4221 square metres, whereas in Germany as many variants of "acre" existed as there were German states. The International System of Units (symbol: SI) (for the French phrase Syst me International dUnit s) is the most widely used system of units. ...
Statutory values for the acre were enacted in England by acts of: Historically, the size of farms and landed estates in the United Kingdom was usually expressed in acres (or acres, roods, and perches), even if the number of acres was so large that it might conveniently have been expressed in square miles. For example, a certain landowner might have been said to own 32,000 acres of land, not 50 square miles of land. Edward I (17 June 1239 â€“ 7 July 1307), popularly known as Longshanks[1], also as Edward the Lawgiver or the English Justinian because of his legal reforms, and as Hammer of the Scots,[2] achieved fame as the monarch who conquered Wales and tried to do the same to Scotland. ...
This article is about the King of England. ...
Henry VIII redirects here. ...
George IV redirects here. ...
Queen Victoria redirects here. ...
1878 (MDCCCLXXVIII) was a common year starting on Tuesday (see link for calendar). ...
A rood is an old English ( AngloSaxon) unit equal to quarter an acre, i. ...
A perch is equal to a square rod. ...
Customary acre The customary acre was a measure of roughly similar size to the acre described above, but was subject to considerable local variation. However, there were more ancient measures that were also used, including carucates, virgates, bovates, nooks, and farundells or farthingales. These may have been multiples of the customary acre, rather than the statute acre. The carucate was both a unit of assessment and a peasant landholding unit found in most of the Danelaw counties. ...
The virgate was a unit of land area measure in Medieval England. ...
A bovate was a measure of land which could be ploughed in one year by one eighth of a plough team with eight oxen, or in other words the measure of land representing one eighth of a carucate. ...
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Other acres A Scottish acre (Scottish Gaelic: acair) was a land measurement used in the country. ...
Several native system of weights and measures were used in Scotland. ...
References See also Conversion of units refers to conversion factors between different units of measurement for the same quantity. ...
An acre foot is a unit of volume commonly used in the United States in reference to largescale water resources, such as reservoirs, aqueducts, canals, and river flows. ...
There are a number of Spanish and Portuguese units of measurement of length or area that are now obsolete. ...
In Australian and New Zealand English, a Quarter Acre is a term for a suburban plot of land. ...
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