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. The most common use of the acre is to measure tracts of land.
One acre comprises 4,840 square yards or 43,560 square feet.1 While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends on which yard it is based on. Originally, an acre was understood as a selion of land sized at one furlong (660 ft) long and one chain (66 ft) wide; this may have also been understood as an approximation of the amount of land an ox could plough in one day. A square enclosing one acre is approximately 208 feet and 9 inches (63.6 metres) on a side. But as a unit of measure an acre has no prescribed shape; any perimeter enclosing 43,560 square feet is an acre in size.
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.
One acre is 90.75 percent of a 100-yard (91.44-meter) long by 53.33-yard (48.77-meter) wide American football field (without the end zones). The full field, including the end zones, covers approximately 1.32 acres (0.53 ha). It is also approximately 56.68 percent of a 105-meter (344.49-foot) long by 68-meter (223.10-foot) wide Association football pitch (soccer field). It may also be remembered as 44,000 square feet, less 1%; or as the product of 66 x 660.
The area of one acre (red) overlaid on an American football field (green) and Association football field (blue). Contents 1 International acre 2 United States survey acre 3 Equivalence to other units of area 4 Historical origin 5 Customary acre 6 Other acres 7 See also 8 References 9 External links // International acreIn 1958, the United States and countries of the Commonwealth of Nations defined the length of the international yard to be 0.9144 metres.2 Consequently, the international acre is exactly 4,046.856 422 4 square metres. Since the difference between the U.S. and International acre is only approximately 0.016 square meters, it is usually not important which one is being discussed.
United States survey acreThe United States survey acre is approximately 4,046.872 609 874 252 square metres; its exact value (4046 13,525,426⁄15,499,969 m2) is based on an inch defined by 1 metre = 39.37 inches exactly, as established by the Mendenhall Order.
Equivalence to other units of area1 international acre is equal to the following metric units:
4,046.8564224 square metres 0.40468564224 hectare (A square with 100 m sides has an area of 1 hectare.)1 United States survey acre is equal to:
4,046.87261 square metres 0.404687261 hectare1 acre (both variants) is equal to the following customary units:
66 feet × 660 feet (43,560 square feet) 1 chain × 10 chains (1 chain = 66 feet = 22 yards = 4 rods = 100 links) 1 acre is approximately 208.71 feet × 208.71 feet (a square) 4,840 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) 1/640 (0.0015625) square mile (1 square mile is equal to 640 acres)1 international acre is equal to the following Indian unit:
100 Indian cents (1 cent is equal to 0.01 acre) Historical origin Farm-derived units of measurement: The rod is a historical unit of length equal to 5½ yards. It may have originated from the typical length of a mediaeval ox-goad. The furlong (meaning furrow length) was the distance a team of oxen could plough without resting. This was standardised to be exactly 40 rods. An acre was the amount of land tillable by one man behind one ox in one day. Traditional acres were long and narrow due to the difficulty in turning the plough. An oxgang was the amount of land tillable by one ox in a ploughing season. This could vary from village to village, but was typically around 15 acres. A virgate was the amount of land tillable by two oxen in a ploughing season. A carucate was the amount of land tillable by a team of eight oxen in a ploughing season. This was equal to 8 oxgangs or 4 virgates.The word "acre" is derived from Old English æcer originally meaning "open field", cognate to west coast Norwegian ækre and Swedish åker, German acker, Latin ager, and Greek αγρος (agros).
The acre was 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.
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 4,221 square meters, whereas in Germany as many variants of "acre" existed as there were German states.
Statutory values for the acre were enacted in England by acts of:
Edward I, Edward III, Henry VIII, George IV and Victoria – the British Weights and Measures Act of 1878 defined it as containing 4,840 square yards.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.
Customary acreThe customary acre was a measure of roughly similar size to the acre described above, but it was subject to considerable local variation similar to the variation found in carucates, virgates, bovates, nooks, and farundels. However, there were more ancient measures that were also farthingales. These may have been multiples of the customary acre, rather than the statute acre.
Other acres Scottish acre, one of a number of obsolete Scottish units of measurement Irish acre Cheshire acre = 10,240 square yards3 Roman acre = 1,260 square metres God's Acre - a synonym for a churchyard.4 See also Anthropic units Conversion of units Acre-foot Obsolete Spanish and Portuguese units of measurement Quarter acre French Arpent—also used in Louisiana as length and area unit of measure References ^ National Institute of Standards and Technology (n.d.) General Tables of Units of Measurement ^ National Bureau of Standards. (1959). Refinement of Values for the Yard and the Pound. ^ Holland, Robert. (1886). A glossary of words used in the County of Chester. London: Trübner for the English Dialect Society. p. 3. ^ The Collaborative International Dictionary of English.dead link External links Wikisource has the text of the 1911 Encyclopædia Britannica article Acre (land measure). The Units of Measurement Regulations 1995 (United Kingdom) Cockeyed.com presents "How much is inside an acre?" Agricultural Measurements and Conversions Amazon Rainforest Fund: Adopt-an-Acre ProgramAcre definition, a common variable unit of land measure, now equal in the U.S. and Great Britain to 43,560 square feet or See more.
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A new analysis released today by the Pacific Institute recommends specific actions that can annually save a million acre-feet of water quickly and at a lower economic and ecological cost than developing new supplies. The assessment notes that new actions are immediately needed to reduce the growing tensions over the state's water resources and to address California's persistent water supply ...
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Death's Acre: Inside the Legendary Forensic Lab the Body Farm Where the Dead Do Tell Tales Berkley Trade
Definition of the acre, an English unit of land area. Size of an acre. ... Download a pdf chart for converting between acres and hectares. ...
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CAMPO, Calif. (AP) — Firefighters have surrounded an 827 acre wildfire in a remote area east of San Diego. The California Department of Forestry and Fire Protection says the so-called Cowboy blaze, which started Thursday in dense thickets of brush, was contained at dusk Monday. The burn area between Campo and Potrero is about 50 miles east of San Diego. No structures burned and there were no ...
O Acre é uma das 27 unidades federativas do Brasil Está situado no sudoeste da região Norte e tem como limites os estados do Amazonas a norte Rondônia a leste a Bolívia a sudeste e o
acre n. ( Abbr. a. or ac. ) A unit of area in the U.S. Customary System, used in land and sea floor measurement and equal to 160 square rods, 4,840
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Sacramento Fire Department crews were mopping up a 12-acre grass and brush fire at Discovery Park early Wednesday.
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Acre also Akko A port city of northern Israel on the Bay of Haifa. During the Crusades it changed hands many times between Christians and Muslims
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CAMPO, CALIF. — Firefighters have surrounded an 827 acre wildfire in a remote area east of San Diego. The California Department of Forestry and Fire Protection says the so-called Cowboy blaze, which started Thursday in dense thickets of brush, was contained at dusk Monday.
murio el 9 de octubre de 1180 en cautividad por haberse negado a ser canjeado o a que pagaran un rescate para liberarle SAN JUAN DE ACRE Tras la perdida deTripoli el papa mando veinte galeras para ayudar a los cristianos que quedaban en Acre Los cruzados que llegaron
The Association of Commercial Real Estate, ACRE, is a non-profit, professional association formed to promote working relationships and professionalism within the ...
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Firefighters have surrounded an 827 acre wildfire in a remote area east of San Diego.
Liberdade de Criação Cultura na Revolução Acção Cultural elaborada pelo Grupro Acre Rua do Carmo Lisboa Agosto de 1974 Alguns lembrar se ão do painel elaborado pelo Movimento Democrático de Artistas Plásticos MDAP na
Pronunciation of Acre. Translations of Acre. Acre synonyms, Acre antonyms. Information about Acre in the free online English dictionary and encyclopedia. acre foot ...
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( Pacific Institute for Studies in Development, Environment, and Security ) A new Pacific Institute analysis identifies specific actions that can annually save a million acre-feet of water in California quickly and at lower economic and ecological cost than developing new supplies. Water conservation and efficiency improvements from urban and agricultural sectors are central components of any ...
Segundo a assessoria da Academia Brasileira de Letras nunca houve no país uma discussão tão rica e profícua A declaração dada à Folha On Line do jornal Folha de S Paulo refere se
The most commonly used acres today are the international acre and, in the United States, the survey acre. One international acre is equal 4046.8564224 m2. ...
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A bobcat climbing a power pole is being blamed for starting a 5-acre brushfire in eastern Ventura County.
One acre comprises 4,840 square yards or 43,560 square feet (which can be easily remembered as 44,000 square feet, less 1
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A bobcat climbing a power pole got electrocuted and sparked a five-acre brush fire in California's Ventura County.
A bobcat climbing a power pole got electrocuted and sparked a five-acre brush fire in California's Ventura County. County fire Capt. Dan Preston told the Ventura County Star that the bobcat was apparently chasing an owl or another bird when it touched the power lines, caught fire and fell to the ground in a rural area near Piru. California - Ventura County California - United States - Counties ...
PIRU, Calif. (AP) — A bobcat climbing a power pole started a five acre brush fire in eastern Ventura County. County fire Capt. Dan Preston told the Ventura County Star that the bobcat was apparently chasing an owl or another bird when it touched the power lines, caught fire and fell to the ground in a rural area near Piru. The fire was reported at 3:36 a.m. Monday atop Torrey Peak. More than 40 ...


















