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This is a list of obsolete units of measurement, organized by type. These
units of measurement A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a mul ...
are typically no longer used, though some may be in limited use in various regions. For units of measurement that are unusual but not necessarily obsolete, see
List of unusual units of measurement An unusual unit of measurement is a unit of measurement that does not form part of a coherent system of measurement, especially because its exact quantity may not be well known or because it may be an inconvenient multiple or fraction of a bas ...
. For units of measurement that are humorous in nature, see List of humorous units of measurement.


Area

* Antsingae – a unit of area, smaller than the bunarium. * Bunarium (plural "bunaria") – a unit of area, equal to about 120
ares Ares (; grc, Ἄρης, ''Árēs'' ) is the Greek god of war and courage. He is one of the Twelve Olympians, and the son of Zeus and Hera. The Greeks were ambivalent towards him. He embodies the physical valor necessary for success in war ...
or 12,000 square metres *
Carucate The carucate or carrucate ( lat-med, carrūcāta or ) was a medieval unit of land area approximating the land a plough team of eight oxen could till in a single annual season. It was known by different regional names and fell under different form ...
*
Cawnie A cawnie is an obsolete unit of land area used in Chennai (formerly Madras) in India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country ...
* Decimal * Dessiatin *
Ground Ground may refer to: Geology * Land, the surface of the Earth not covered by water * Soil, a mixture of clay, sand and organic matter present on the surface of the Earth Electricity * Ground (electricity), the reference point in an electrical c ...
* Hide *
Juchart A Juchart (also Jucharte or Juchard, in French ''Pose'', in Italian ''Pertica'') was a unit of area measurement used in rural Switzerland until the early 20th century. In other German speaking regions it was known as a ''Joch'', ''Jochart'', ''Jauc ...
* Jugerum * Katha * Lessa or Lecha
and
Arşın An arşın ( ota, آرشين or ) is an old Turkish unit of length, about long.A.D. Alderson and Fahir İz, ''The Concise Oxford Turkish Dictionary'', 1959. The word means 'arm' and thus the measure corresponds to a yard. See also * arş, the ...
– two Turkish units of length *
Bamboo Bamboos are a diverse group of evergreen perennial flowering plants making up the subfamily Bambusoideae of the grass family Poaceae. Giant bamboos are the largest members of the grass family. The origin of the word "bamboo" is uncertain, ...
– also known as the Burmese league * Barleycorn – one-third of an inch. * Button – a unit of length which has been used in the UK. It is defined as . *
Cana Cana of Galilee ( grc, Κανὰ τῆς Γαλιλαίας; ar, قانا الجليل , translit= Qana al-Jalil , lit=Qana of the Galilee) is the location of the Marriage at Cana, at which the miracle of turning water into wine took place i ...
– a
unit of length A unit of length refers to any arbitrarily chosen and accepted reference standard for measurement of length. The most common units in modern use are the metric units, used in every country globally. In the United States the U.S. customary uni ...
used in the former
Crown of Aragon The Crown of Aragon ( , ) an, Corona d'Aragón ; ca, Corona d'Aragó, , , ; es, Corona de Aragón ; la, Corona Aragonum . was a composite monarchy ruled by one king, originated by the dynastic union of the Kingdom of Aragon and the County of ...
, at least in Catalonia. It is around the same value as the vara of Aragon, Spain, and Portugal. *
Cubit The cubit is an ancient unit of length based on the distance from the elbow to the tip of the middle finger. It was primarily associated with the Sumerians, Egyptians, and Israelites. The term ''cubit'' is found in the Bible regarding ...
*
Ell An ell (from Proto-Germanic *''alinō'', cognate with Latin ''ulna'') is a northwestern European unit of measurement, originally understood as a cubit (the combined length of the forearm and extended hand). The word literally means "arm", and ...
*
Girah A girah (also ''geerah'') was a unit of length in India and Pakistan approximately equal to 2.25 inches (5.715 cm). After metrication by both countries in the mid-20th century, the unit became obsolete. See also * List of customary ...
* Guz *
Hat'h A hat'h (''hath'', ''hand'', '' cubit'', ''moolum'' or ''mulam'') is an obsolete unit of length in India equal to 24 angli (approximately 18 inches) or 2 hat'h to a gaz (approximately 1 yard). The unit was used in Mumbai (formerly Bombay) ...
* Jow *
Lachter The ''lachter'' (also ''Berglachter'') was a common unit of length used in the mining industry in Europe, usually to measure depth, tunnel driving and the size of mining fields; it was also used for contract work. In most German-speaking mining f ...
– a unit of length once used in the
mining Mining is the extraction of valuable minerals or other geological materials from the Earth, usually from an ore body, lode, vein, seam, reef, or placer deposit. The exploitation of these deposits for raw material is based on the economic ...
industry in most of Europe. It was usually used to measure depth, tunnel driving and the size of mining fields; it was also used for contract work. In mining in the German-speaking countries, it was the primary unit of length. * Ligne – a French unit of length, roughly equal to , or 9 points *
Line Line most often refers to: * Line (geometry), object with zero thickness and curvature that stretches to infinity * Telephone line, a single-user circuit on a telephone communication system Line, lines, The Line, or LINE may also refer to: Art ...
* Macedonian cubit * Pace * Palm *
Parasang The parasang is a historical Iranian unit of walking distance, the length of which varied according to terrain and speed of travel. The European equivalent is the league. In modern terms the distance is about 3 or 3½ miles (4.8 or 5.6 km). H ...
*
Pes Pes (Latin for "foot") or the acronym PES may refer to: Pes * Pes (unit), a Roman unit of length measurement roughly corresponding with a foot * Pes or podatus, a * Pes (rural locality), several rural localities in Russia * Pes (river), a river ...
*
Pyramid inch The pyramid inch is a unit of measure claimed by pyramidologists to have been used in ancient times. History The first suggestion that the builders of the Great Pyramid of Giza used units of measure related to modern measures is attributed to ...
– a unit of length, believed to be equal to of the cubit *
Rod Rod, Ror, Ród, Rőd, Rød, Röd, ROD, or R.O.D. may refer to: Devices * Birch rod, made out of twigs from birch or other trees for corporal punishment * Ceremonial rod, used to indicate a position of authority * Connecting rod, main, coupling, ...
* Sana lamjel * Spat – a unit of length equal to * Stadion * Step *
Unglie A unglie ("finger") is an obsolete unit of length equal to three-fourths of an inch (1.905 cm) that was used in India and Pakistan. After metrification in both countries, the unit became obsolete. See also * List of customary units of measu ...
* Vara – an Aragonese, Spanish and Portuguese unit *
Yojana A yojana (Sanskrit: योजन; th, โยชน์; my, ယူဇနာ) is a measure of distance that was used in ancient India, Thailand and Myanmar. A yojana is about 12–15 km. Edicts of Ashoka (3rd century BCE) Ashoka, in his Major R ...
– a
Vedic upright=1.2, The Vedas are ancient Sanskrit texts of Hinduism. Above: A page from the '' Atharvaveda''. The Vedas (, , ) are a large body of religious texts originating in ancient India. Composed in Vedic Sanskrit, the texts constitute the ...
measure of distance used in ancient
India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...
. Its value was about , although the exact value is disputed among scholars (between )


Luminosity

* Candlepower – an obsolete unit expressing luminous intensity equal to 0.981
candela The candela ( or ; symbol: cd) is the unit of luminous intensity in the International System of Units (SI). It measures luminous power per unit solid angle emitted by a light source in a particular direction. Luminous intensity is analogous t ...
, it expresses levels of light intensity in terms of the light emitted by a
candle A candle is an ignitable wick embedded in wax, or another flammable solid substance such as tallow, that provides light, and in some cases, a fragrance. A candle can also provide heat or a method of keeping time. A person who makes candl ...
of specific size and constituents. In modern usage ''candlepower'' equates directly to the unit known as the candela. *
Carcel burner The Carcel lamp was an efficient lighting device used in the nineteenth century for domestic purposes and in France as the standard measure for illumination. The lamp was invented by the French watchmaker Bernard Guillaume Carcel (1750–1818) to ...
– an efficient lighting device used in the nineteenth century for domestic purposes and in France as the standard measure for illumination * Carcel *
Hefner candle The Hefner lamp, or in German ''Hefnerkerze'', is a flame lamp used in photometry (optics), photometry that burns amyl acetate. The lamp was invented by Friedrich von Hefner-Alteneck in 1884 and he proposed its use as a standard flame for photome ...
* Violle


Mass or weight

*
Abucco In Pegu, Burma, the abucco (plural ''abucci'' or ''abuccos'') was a unit of mass used for gold and silver. It was approximately 196.44 grams or 6.316 troy ounces. Other units of mass were: *1 biza = 4 agiros = 8 abucci = 100 teccalis *1 agiro = 2 a ...
– in Bago, Myanmar, this was a unit of mass used for
gold Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile ...
and
silver Silver is a chemical element with the Symbol (chemistry), symbol Ag (from the Latin ', derived from the Proto-Indo-European wikt:Reconstruction:Proto-Indo-European/h₂erǵ-, ''h₂erǵ'': "shiny" or "white") and atomic number 47. A soft, whi ...
. It was approximately 196.44 grams or 6.316
troy ounce Troy weight is a system of units of mass that originated in 15th-century England, and is primarily used in the precious metals industry. The troy weight units are the grain, the pennyweight (24 grains), the troy ounce (20 pennyweights), and ...
s. * Arroba – an Iberian unit of weight, equivalent to 11.5 kilograms * Bag – a standard weight for a bag of cement was * Buddam *
Candy Candy, also called sweets (British English) or lollies ( Australian English, New Zealand English), is a confection that features sugar as a principal ingredient. The category, called '' sugar confectionery'', encompasses any sweet confection, ...
* Corgee – an obsolete unit of mass equal to 212 moodahs, or rush mat bundles of rice. The unit was used in the Canara (now Kanara) region of
Karnataka Karnataka (; ISO: , , also known as Karunāḍu) is a state in the southwestern region of India. It was formed on 1 November 1956, with the passage of the States Reorganisation Act. Originally known as Mysore State , it was renamed ''Kar ...
in
India India, officially the Republic of India ( Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the ...
. *
Cullingey A cullingey is an obsolete unit of mass that was used in the southern region in state of Karnataka in India. One cullingey was approximately equal to 81.25 troy grain A grain is a unit of measurement of mass, and in the troy weight, avoird ...
* Dharni *
Dirham The dirham, dirhem or dirhm ( ar, درهم) is a silver unit of currency historically and currently used by several Arab and Arab influenced states. The term has also been used as a related unit of mass. Unit of mass The dirham was a un ...
* Duella *
Dutch cask Dutch cask is a UK unit of weight for butter and cheese. Definition The dutch cask is defined as . Conversion 1 Dutch cask ≡ 32/21 Tub 1 Dutch cask ≡ 112 pounds(avdp.) 1 Dutch cask ≡ 50.80234544 kg References {{Reflist Cooking ...
– a British unit of mass, used for butter and cheese. Equal to . *
Esterling The esterling is an obsolete Belgian unit of mass. * 1 esterling = 1/20 ounce References * Kaltschmidt, J. H. ''Neuestes und vollständigstes Fremdwörterbuch zur Erklärung aller aus fremden Sprachen entlehnten Wörter und Ausdrücke.'' F. A. ...
*
Faggot Faggot, faggots, or faggoting may refer to: Arts and crafts * Faggoting (metalworking), forge welding a bundle of bars of iron and steel * Faggoting (knitting), variation of lace knitting in which every stitch is a yarn over or a decrease * F ...
– has multiple meanings in metrology. As relevant to this article, it was a unit of mass, being . * Grzywna *
Keel The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in B ...
– a UK unit of mass for
coal Coal is a combustible black or brownish-black sedimentary rock, formed as stratum, rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen ...
, equalling *
Large sack The sack (abbreviation: sck.) was an English units, English unit of weight or mass used for coal and wool. It has also been used for other commodities by weight, commodities by volume, and for both weight and volume in the United States. Wool The ...
– a unit of mass equal to 2 (new) sacks * Long ton * Lot * Mark * Munjandie * Oka * Pao *
Passeree A passeree is an obsolete unit of mass used in Bengal that approximately equalled 4.677  kg (10.3 lb). Five seer (unit), seers made up one passeree. After Metrication in India, metrication in the mid-20th century, the unit became obsolete ...
– a unit of mass equal to about * Pennyweight * Pood * Roll – a U.K. unit of mass for butter and cheese equal to * Room – a U.K. unit of mass of
coal Coal is a combustible black or brownish-black sedimentary rock, formed as stratum, rock strata called coal seams. Coal is mostly carbon with variable amounts of other Chemical element, elements, chiefly hydrogen, sulfur, oxygen, and nitrogen ...
equivalent to * Sarpler *
Ship load Ship load is a United Kingdom unit of weight for coal equal to 20 keels or . External links *NIST Special Publication 811''Guide for the Use of the International System of Units (SI)'' References {{measurement-stub Imperial units Units ...
* Slug *
Talent Talent has two principal meanings: * Talent (measurement), an ancient unit of mass and value * Talent (skill), a group of aptitudes useful for some activities; talents may refer to aptitudes themselves or to possessors of those talents Talent ma ...
– a unit of mass in the tens of kg *
Tank A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and good battlefield mobility provided by tracks and a powerful e ...
* Tod *
Truss A truss is an assembly of ''members'' such as beams, connected by ''nodes'', that creates a rigid structure. In engineering, a truss is a structure that "consists of two-force members only, where the members are organized so that the assembla ...
– a unit of mass used to describe tight bundle of hay or
straw Straw is an agricultural byproduct consisting of the dry stalks of cereal plants after the grain and chaff have been removed. It makes up about half of the yield of cereal crops such as barley, oats, rice, rye and wheat. It has a numbe ...
. It would usually be
cuboid In geometry, a cuboid is a hexahedron, a six-faced solid. Its faces are quadrilaterals. Cuboid means "like a cube", in the sense that by adjusting the length of the edges or the angles between edges and faces a cuboid can be transformed into a cu ...
, for storage or shipping, and would either be harvested into such bundles or cut from a large rick. * Whey – a unit of mass used for butter and cheese * Zentner * Zolotnik


Temperature

* Delisle scale * Leiden scale * Newton scale – a temperature scale devised by
Isaac Newton Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a " natural philosopher"), widely recognised as one of the g ...
in 1701.Published anonymously as "Scala graduum Caloris. Calorum Descriptiones & signa." in * Réaumur scale * Rømer scale * Wedgwood scale


Volume (dry or liquid)

*
Acetabulum The acetabulum (), also called the cotyloid cavity, is a concave surface of the pelvis. The head of the femur meets with the pelvis at the acetabulum, forming the hip joint. Structure There are three bones of the ''os coxae'' (hip bone) tha ...
*
Adowlie An adowlie (also ''adholee'', ''adholy'', ''adowly'') is an obsolete unit of dry volume and mass formerly used in western India a standard measurement for grain and salt. * As a dry measure Dry measures are units of volume to measure bulk commo ...
*
Amphora An amphora (; grc, ἀμφορεύς, ''amphoreús''; English plural: amphorae or amphoras) is a type of container with a pointed bottom and characteristic shape and size which fit tightly (and therefore safely) against each other in storag ...
*
Aum ''Om'' (or ''Aum'') (; sa, ॐ, ओम्, Ōṃ, translit-std=IAST) is a sacred sound, syllable, mantra, or an invocation in Hinduism. ''Om'' is the prime symbol of Hinduism.Krishna Sivaraman (2008), ''Hindu Spirituality Vedas Through Ved ...
* Belshazzar * Botella − The Spanish for "bottle", which has been given various standard capacities at different times and places, and for different fluids. * Chungah * Congius * Coomb *
Cord-foot Cord or CORD may refer to: Common meanings * String * Thin rope * Twine * Cord (climbing) a type of rope used in climbing * Cord (unit) used for measuring wood * Power cord * Umbilical cord Cord or CORD may also refer to: Places * Co ...
– a U.S. unit of volume for stacked firewood with the symbol ''cd-ft'' equal to * Cotyla * Cran *
Cullishigay A cullishigay is an obsolete unit of dry volume used on the Malabar coast of southern India approximately equal to 1.25 imperial bushels (44 litres). It was a third of a mudi or moray Moray () gd, Moireibh or ') is one of the 32 l ...
*
Deal A deal, or deals may refer to: Places United States * Deal, New Jersey, a borough * Deal, Pennsylvania, an unincorporated community * Deal Lake, New Jersey Elsewhere * Deal Island (Tasmania), Australia * Deal, Kent, a town in England * Deal, a ...
– a former U.K. and U.S. unit of volume for stacked firewood. A U.K. deal equaled 7 ft × 6 ft × in, while a U.S. deal equaled 12 ft × 11 in × in. *
Demiard The demiard is a traditional unit of volume originating in pre-revolutionary A revolutionary is a person who either participates in, or advocates a revolution. The term ''revolutionary'' can also be used as an adjective, to refer to something ...
– an old French unit of volume. When France metricated, it survived in Louisiana and Quebec. The demiard eventually became associated with the American and British half-pint rather than French units. See the article on the demiard for details. * Firlot * Hekat *
Hogshead A hogshead (abbreviated "hhd", plural "hhds") is a large cask of liquid (or, less often, of a food commodity). More specifically, it refers to a specified volume, measured in either imperial or US customary measures, primarily applied to alcoh ...
*
Homer Homer (; grc, Ὅμηρος , ''Hómēros'') (born ) was a Greek poet who is credited as the author of the '' Iliad'' and the '' Odyssey'', two epic poems that are foundational works of ancient Greek literature. Homer is considered one of ...
* House cord – a former U.S. unit of volume for stacked firewood * Kile * Koku *
Lambda Lambda (}, ''lám(b)da'') is the 11th letter of the Greek alphabet, representing the voiced alveolar lateral approximant . In the system of Greek numerals, lambda has a value of 30. Lambda is derived from the Phoenician Lamed . Lambda gave ris ...
– an uncommon metric unit of volume discontinued with the introduction of the SI *
London quarter London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...
* Lump of butter – used in the U.S., up to and possibly after of the
American Revolution The American Revolution was an ideological and political revolution that occurred in British America between 1765 and 1791. The Americans in the Thirteen Colonies formed independent states that defeated the British in the American Revolu ...
. It equaled "one well rounded tablespoon". * Masu * Metretes *
Octave In music, an octave ( la, octavus: eighth) or perfect octave (sometimes called the diapason) is the interval between one musical pitch and another with double its frequency. The octave relationship is a natural phenomenon that has been refer ...
* Omer * Pau * Peck – the name of two different units of volume, one imperial and one U.S. Both equaled about 9 litres. *
Puddee A puddee is an obsolete unit of dry volume used in Chennai (formerly Madras) in southern India. It was approximately equal to 2.89 imperial pints (1.591264 litres). Later it was standardised it to 100 cubic inches (1.64 litres), ...
* Salt spoon – used in the U.S., up to and possibly after of the American Revolution. Four salt spoons equaled one teaspoon. * Seah * Ser * Shipping ton – a unit of volume defined as *
Stuck Stuck may refer to: Film and television * ''Stuck'' (2001 film), a short film directed by Jamie Babbit * ''Stuck'' (2002 film), a Canadian TV drama directed by Lindsay Bourne * ''Stuck'' (2007 film), a thriller directed by Stuart Gordon and starr ...
* Wineglass – used in the U.S., up to and possibly after of the American Revolution. One wineglass equaled cup.


Other

*
Apothecaries' system The apothecaries' system, or apothecaries' weights and measures, is a historical system of mass and volume units that were used by physicians and apothecaries for medical prescriptions and also sometimes by scientists."Medicinal-Gewicht, Apothek ...
* Atom (time) – a hypothetical unit of time used in the Middle Ages *
Bahar Bahar may refer to: Places Armenia * Bahar, the former name of Arpunk, a village in the Gegharkunik Province of Armenia * Bahar, the former name of Kakhakn, a town in the Gegharkunik Province of Armenia Northeast Africa * Bahir Dar or Bahar D ...
– a unit of length in
Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkm ...
, and was a unit of mass in
Oman Oman ( ; ar, عُمَان ' ), officially the Sultanate of Oman ( ar, سلْطنةُ عُمان ), is an Arabian country located in southwestern Asia. It is situated on the southeastern coast of the Arabian Peninsula, and spans the mouth of ...
*
Batman Batman is a superhero appearing in American comic books published by DC Comics. The character was created by artist Bob Kane and writer Bill Finger, and debuted in the 27th issue of the comic book '' Detective Comics'' on March 30, 1939 ...
– mostly a unit of mass, but sometimes a unit of area *
Demal The mole, symbol mol, is the unit of amount of substance in the International System of Units (SI). The quantity amount of substance is a measure of how many elementary entities of a given substance are in an object or sample. The mole is define ...
– unit of concentration *
Dimi (metric prefix) Dimi may refer to: *Dymi, Achaea, a municipal unit in Achaea, Greece *Dimi, a type of Georgian wine *Dimi, short for the given names Dimitri (disambiguation), Dimitrios Demetrius is the Latinized form of the Ancient Greek male given name ''Dē ...
– a discontinued non- SI metric prefix for 10−4 * Fanega – a unit of dry volume, and a unit of area * Fresnel – a unit of frequency * Garce – a unit of dry volume in India, and a unit of mass in Sri Lanka *
Hobbit Hobbits are a fictional race of people in the novels of J. R. R. Tolkien. About half average human height, Tolkien presented hobbits as a variety of humanity, or close relatives thereof. Occasionally known as halflings in Tolkien's writings, ...
– a unit of volume, or, more rarely, of weight *
Kula Kula, which translates as ''Tower'' from Serbo-Croatian, may refer to: People *Bob Kula, American football player *Irwin Kula (born 1957), American rabbi and author *Karel Kula (born 1963), Czech footballer Places * Kula, Bihać, a village in ...
– a unit of area in India, and mass in Morocco * Last – a unit of mass or volume * League – usually a unit of length, but sometimes a unit of area * Mache * Mesures usuelles * Perch – most commonly a unit of area, but sometimes a unit of length or volume *
Pièze The pièze () is the unit of pressure in the metre–tonne–second system of units (mts system), used, e.g., in the former Soviet Union 1933–1955. It is defined as one sthène The sthène (; symbol sn), sometimes spelled (or misspelled) sthéne ...
– a unit of pressure * Quibi – a unit of time equal to 10 minutes. First used in Quibi’s own
Super Bowl LIII Super Bowl LIII was an American football game played to determine the champion of the National Football League (NFL) for the 2018 season. The American Football Conference (AFC) champion New England Patriots defeated the National Football Con ...
advertising campaign, this word saw small amounts of ironic adoption. *
Rood A rood or rood cross, sometimes known as a triumphal cross, is a cross or crucifix, especially the large crucifix set above the entrance to the chancel of a medieval church. Alternatively, it is a large sculpture or painting of the crucifixio ...
– a unit of area or length * Sack – originally a medieval unit of mass, equal to 26 stone (364 pounds, or about 165 kg). Since a unit of dry volume, equal to 24 imperial gallons (about 109 liters). * Schoenus – a unit of area or length * Scrupulum – a unit of area, mass, or time *
Seam Seam may refer to: Science and technology * Seam (geology), a stratum of coal or mineral that is economically viable; a bed or a distinct layer of vein of rock in other layers of rock * Seam (metallurgy), a metalworking process the joins the ends ...
– a unit of mass or volume * Seer – a unit of mass or volume * Toise – a unit of area, length, or volume * Tub – usually a unit of mass, but sometimes a unit of volume * Uncia – an ancient Roman unit of length, mass, or volume *
Wey Wey may refer to: Places *Wey (state) (衞), or Wei, ancient Chinese state during the Zhou Dynasty *River Wey, river in Surrey, Hampshire and West Sussex, England *River Wey (Dorset), river of Dorset, south west England *Wey and Arun Canal, canal ...
– a unit of mass or volume * Winchester measure – a system of volume measurement


See also

* Hair's breadth * Hindu units of time * History of measurement * List of humorous units of measurement * List of scientific units named after people *
List of unusual units of measurement An unusual unit of measurement is a unit of measurement that does not form part of a coherent system of measurement, especially because its exact quantity may not be well known or because it may be an inconvenient multiple or fraction of a bas ...
*
Medieval weights and measures The following systems arose from earlier systems, and in many cases utilise parts of much older systems. For the most part they were used to varying degrees in the Middle Ages and surrounding time periods. Some of these systems found their way in ...
*
Muggeseggele A ''Muggeseggele'' or ''Muckenseckel'' is a humorous Alemannic German idiom used in Swabia to designate a nonspecific very small length or amount of something; it refers to a housefly's scrotum. It has been called the smallest Swabian unit of mea ...
*
System of measurement A system of measurement is a collection of units of measurement and rules relating them to each other. Systems of measurement have historically been important, regulated and defined for the purposes of science and commerce. Systems of measurement i ...


By geography

* Ancient Arabic units of measurement * Ancient Egyptian units of measurement *
Ancient Greek units of measurement Ancient Greek units of measurement varied according to location and epoch. Systems of ancient weights and measures evolved as needs changed; Solon and other lawgivers also reformed them ''en bloc''. Some units of measurement were found to be conven ...
* Ancient Mesopotamian units of measurement *
Ancient Roman units of measurement The ancient Roman units of measurement were primarily founded on the Hellenic system, which in turn was influenced by the Egyptian system and the Mesopotamian system. The Roman units were comparatively consistent and well documented. Length ...
* Danish units of measurement * Obsolete Finnish units of measurement *
Obsolete German units of measurement The obsolete units of measurement of German-speaking countries consist of a variety of units, with varying local standard definitions. Some of these units are still used in everyday speech and even in stores and on street markets as shorthand for ...
* History of measurement systems in India *
Japanese units of measurement Traditional Japanese units of measurement or the shakkanhō (, "''shaku–kan'' system") is the traditional system of measurement used by the people of the Japanese archipelago. It is largely based on the Chinese system, which spread to Japan a ...
* List of customary units of measurement in South Asia * Maltese units of measurement *
Obsolete Polish units of measurement The traditional Polish units of measurement included two uniform yet distinct systems of weights and measures, as well as a number of related systems borrowed from neighbouring states. The first attempt at standardisation came with the introduction ...
* Obsolete Russian units of measurement * Obsolete Scottish units of measurement * Obsolete Tatar units of measurement *
Old Cornish units of measurement The old Cornish units of measurement were used in the 1700s and based on English measurements in their name and rough size, although had slight difference in their values. Area Richard Carew's ''Survey of Cornwall'' (1602) says: : Corn ...
* Old Irish units of measurement * Ottoman units of measurement * Persian units of measurement * Portuguese customary units * Roman timekeeping * Spanish customary units * Tamil units of measurement


References


Further reading

* ''Encyclopaedia of Historical Metrology, Weights, and Measures''; Jan Gyllenbok; Birkhäuser; 2018; 3 Volumes. * ''Historical Metrology: A New Analysis of the Archaeological and the Historical Evidence Relating to Weights and Measures''; Algernon Berriman; Praeger; 1970; . {{Systems of measurement Lists of units of measurement