List of obsolete units of measurement
From Wikipedia, the free encyclopedia
This is a list of obsolete units of measurement, organized by type. These units of measurement are typically no longer used, though some may be in limited use in various regions.
Area
- Antsingae – a unit of area, smaller than the bunarium.[1]
- Bunarium (plural "bunaria") – a unit of area, equal to about 120 ares or 12,000 square metres[1]
- Carucate
- Cawnie
- Decimal
- Dessiatin
- Ground
- Hide
- Juchart
- Jugerum
- Katha
- Lessa or Lecha[2]
- Marabba
- Morgen
- Oxgang
- Pari – a unit of area equal to about 1 hectare
- Quinaria
- Tathe
- Virgate
Energy, etc.
Length
Human scale (≤1.7 m)
| Unit | Size | Origin | Notes |
|---|---|---|---|
| Ald | 160–180 cm (63–71 in) | Mongolian | Mongolian equivalent of the fathom. |
| Alen, aln | 59.38–62.77 cm (23.38–24.71 in) | Danish, Norwegian, Swedish | Scandinavian equivalent of the ell. |
| Aṅgula | 1.763 cm (0.694 in) | Ancient Indian | |
| Arshin | 68–75.774 cm (26.772–29.832 in) | Ottoman, Russian/Slavic | Related to the Turkish Arş. |
| Barleycorn | 0.847 cm (0.333 in) | English | One-third of an inch. |
| Cana | 157 cm (62 in) | Aragonese, Catalan | It is around the same value as the vara of Aragon, Spain, and Portugal.[3] |
| Cubit[4] | 44.4–82.9 cm (17.5–32.6 in) | Anthropometric | Equivalent of the ell in the ancient world. |
| Macedonian cubit | 35.6 cm (14.0 in) | Ancient Macedonian | |
| Ell | 40.3–137.2 cm (15.9–54.0 in) | Germanic | Varies between the smallest German elle on the low end and the French aune at the longest. |
| Girah | 5.72 cm (2.25 in) | Indian | |
| Gunter's link | 20.1167652–20.1168402 cm (7.9199863–7.9200158 in) | English | Technically used until recently in US surveying. |
| Guz | 61–104 cm (24–41 in) | Mughal, South Asian | |
| Hat'h | 30.5–52 cm (12.0–20.5 in) | South Asian | |
| Jow, jacob | 0.63 cm (0.25 in) | South Asian | |
| Ligne | 0.0635–0.2256 cm (0.0250–0.0888 in) | French | Roughly equal to 9 points. |
| Line | 0.064–0.254 cm (0.025–0.100 in) | English | Borrowed into other European systems as 1⁄12 inch (0.212-0.229 cm), except for the Russian liniya which used the largest definition (1⁄10 inch). |
| Lokot | 45.7–54.7 cm (18.0–21.5 in) | Russian | Russian equivalent of the ell. |
| Pace | 71–148 cm (28–58 in) | Anthropometric | |
| Palm | 6.7–29.34 cm (2.64–11.55 in) | Anthropometric | Mostly remained between 6.7-8.8 cm until medieval European usage, during which it was more akin to a span. |
| Pes | 29.5–30.1 cm (11.6–11.9 in) | Roman | |
| Pous | 29.6–32.4 cm (11.7–12.8 in) | Ancient Greek | |
| Pyramid inch | 2.094–2.543 cm (0.824–1.001 in) | Pseudo-Egyptian, English | Discredited speculative unit of length, believed to be equal to 1⁄25 of the sacred cubit or 11⁄1000 British inches. |
| Step | 74–81 cm (29–32 in) | Roman | |
| Unglie | 1.9 cm (0.75 in) | South Asian | |
| Vara | 83.59–86.6 cm (32.91–34.09 in) | Spanish |
Greater than human scale (>1.7 m)
| Unit | Size | Origin | Notes |
|---|---|---|---|
| Arabic mile | 1.667–2.285 km (1.036–1.420 mi) | Ancient Arabic | |
| Bamboo | 3.91–12.8 m (12.8–42.0 ft)[citation needed] | South Asian | Related to the dáin. |
| Dáin | 3.9 km (2.4 mi) | South Asian, Burmese? | Also known as the Burmese league, possibly synonymous with the yojana. |
| Lachter | 1.75–2.38 m (5 ft 9 in – 7 ft 10 in) | German mining industry | Usually used to measure depth, tunnel driving and the size of mining fields; also used for contract work. In mining in the German-speaking countries, it was the primary unit of length. |
| Parasang | 3.9–6 m (13–20 ft) | Persian | |
| Rod | 1.838–7.62 m (6 ft 0.4 in – 25 ft 0 in) | European | Standardized as 5.0292 m (16.500 ft) by the British empire. |
| Siriometer | 149,597,870,700,000 km (9.29558073×1013 mi) | Astronomical | Defined as 1 million AUs, or roughly twice the distance from Earth to Sirius. |
| Spat | 1,000,000,000 km (620,000,000 mi) | Astronomical | |
| Stadion, stade | 157–209 m (515–686 ft) | Ancient Greek | |
| Verst | 1.067–1.49 km (0.663–0.926 mi) | Russian | |
| Yojana | 3.5–20.5 km (2.2–12.7 mi) | Vedic | Its value was about 10 km (6.2 mi), although the exact value is disputed among scholars (commonly between 8 and 13 km or 5 and 8 mi). |
Luminosity
- Carcel burner – an efficient lighting device used in the nineteenth century for domestic purposes and in France as the standard measure for illumination
- Carcel
- Hefner candle
- Violle
Mass or weight
- Abucco – in Bago, Myanmar, this was a unit of mass used for gold and silver. It was approximately 196.44 grams or 6.316 troy ounces.[5]
- Arroba – an Iberian unit of weight, equivalent to 11.5 kg (25 lb)[6]
- Buddam
- Candy
- 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 in India.
- Cullingey
- Dharni
- Dirham
- Duella
- Dutch cask – a British unit of mass, used for butter and cheese. Equal to 112 lb (51 kg).
- Esterling
- Faggot – has multiple meanings in metrology. As relevant to this article, it was a unit of mass, being 120 lb (54 kg).
- Grzywna
- Keel – a UK unit of mass for coal, equaling 21,540.19446656 kg (47,488.0000000 lb)[7]: 48
- Large sack – a unit of mass equal to 2 (new) sacks
- Long ton
- Lot
- Mark
- Munjandie
- Oka
- Pao
- Passeree – a unit of mass equal to about 4.6 kg (10.1412640605 lb)
- Pennyweight
- Pood
- Roll – a U.K. unit of mass for butter and cheese[7]: 46 equal to 24 oz (680 g)[7]: 52
- Room – a U.K. unit of mass of coal equivalent to 15,680 lb (7,110 kg)[7]: 52
- Sarpler
- Ship load
- Slug
- Talent – a unit of mass in the tens of kg
- Tank
- Tod
- Truss – a unit of mass used to describe tight bundle of hay or straw. It would usually be cuboid, 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 in 1701.[8][9][10]
- Réaumur scale
- Rømer scale
- Wedgwood scale
Volume (dry or liquid)
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- Acetabulum
- Adowlie
- Amphora
- Aum
- Belshazzar
- Botella − Spanish for "bottle", which has been given various standard capacities at different times and places, and for different fluids.[12] Often-cited figures include 0.95 liters in Cuba (1796), 0.75 liters in Cuba (1862) and 0.7 liters in Colombia (1957).[13]
- Bucket
- Butt
- Chungah
- Congius
- Coomb
- Cord-foot – a U.S. unit of volume for stacked firewood with the symbol cd-ft equal to 16 ft3 (0.45 m3)[7]: 52
- Cotyla
- Cran
- Cullishigay
- Deal – a former U.K. and U.S. unit of volume for stacked firewood.[7] A U.K. deal equaled 7 ft × 6 ft × 2+1⁄2 in (178 mm × 1,829 mm × 64 mm; 20.8 l), while a U.S. deal equaled 12 ft × 11 in × 1+1⁄2 in (3,658 mm × 279 mm × 38 mm; 38.8 l).[7]
- Demiard – 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.[7]
- Firlot
- Hekat
- Hogshead
- Homer
- House cord – a former U.S. unit of volume for stacked firewood[7]
- Kile
- Koku
- Lambda – an uncommon metric unit of volume discontinued with the introduction of the SI
- London quarter
- Lump of butter – used in the U.S. up to and possibly after of the American Revolution. It equaled "one well rounded tablespoon".[14]
- Masu
- Metretes
- Octave
- Omer
- Pau
- Peck – the name of two different units of volume, one imperial and one U.S. Both equaled about 9 litres.
- Puddee
- Salt spoon – used in the U.S., up to and possibly after of the American Revolution. Four salt spoons equaled one teaspoon.[14]
- Seah
- Ser
- Shipping ton – a unit of volume defined as 50 ft3 (1.4 m3)
- Stuck
- Wineglass – used in the U.S., up to and possibly after of the American Revolution. One wineglass equaled 1⁄4 cup.[14]
Other
- Apothecaries' system
- Atom (time) – a hypothetical unit of time used in the Middle Ages
- Bahar – a unit of length in Iran, and was a unit of mass in Oman
- Batman – mostly a unit of mass, but sometimes a unit of area
- Demal – unit of concentration
- Dimi (metric prefix) – a discontinued non-SI metric prefix for 10−4[7]
- Einstein – unit of energy, and a unit of amount of substance
- 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 – a unit of volume, or, more rarely, of weight
- Kula – 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 – a unit of pressure
- Quibi – a unit of time equal to 10 minutes. First used in Quibi's own Super Bowl LIII advertising campaign, this word saw small amounts of ironic adoption.
- Rood – 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 – 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 – a unit of mass or volume
- Winchester measure – a system of volume measurement
See also
- Dimensional metrology
- Forensic metrology
- Smart Metrology
- Time metrology
- Quantum metrology
- Hair's breadth
- Hindu units of time
- History of measurement
- List of humorous units of measurement
- List of non-coherent units of measurement
- List of scientific units named after people
- Medieval weights and measures
- Muggeseggele
- System of measurement
By geography
- Ancient Arabic units of measurement
- Ancient Egyptian units of measurement
- Ancient Greek units of measurement
- Ancient Mesopotamian units of measurement
- Ancient Roman units of measurement
- Danish units of measurement
- Obsolete Finnish units of measurement
- Obsolete German units of measurement
- History of measurement systems in India
- Japanese units of measurement
- List of customary units of measurement in South Asia
- Maltese units of measurement
- Obsolete Polish units of measurement
- Obsolete Russian units of measurement
- Obsolete Scottish units of measurement
- Obsolete Tatar units of measurement
- Old Cornish units of measurement
- 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