Units of mass

The kilogram (also spelled kilogramme) is the base unit of mass in the International System of Units (SI), equal to one thousand grams. It has the unit symbol kg. The word "kilogram" is formed from the combination of the metric prefix kilo- (meaning one thousand) and gram; it is commonly shortened to "kilo" (plural "kilos").

The gram (originally gramme; SI unit symbol g) is a unit of mass in the International System of Units (SI) equal to one thousandth of a kilogram.

The tonne ( or ; symbol: t) is a unit of mass equal to 1,000 kilograms. It is a non-SI unit accepted for use with SI. It is also referred to as a metric ton in the United States to distinguish it from the non-metric units of the short ton and the long ton. One tonne is equivalent to approximately 2,204.6 pounds, 1.102 short tons, and 0.984 long tons. The exact corresponding SI unit is the megagram (symbol Mg), a less common way to express the same mass.

unit of mass in imperial, US customary, and avoirdupois systems of units

standard unit of mass in astronomy which is equal to 1.98892 × 10³⁰ kg

unit of mass defined as ¹⁄₁₂ of the mass of a carbon-12 atom

official currency of Thailand

The ounce () is any of several different units of mass, weight, or volume and is derived almost unchanged from the , an Ancient Roman unit of measurement.

unit of mass

thumb|Nations in red currently use the dirham. Nations in green use a currency with a subdivision named dirham. The dirham, dirhem or drahm is a unit of currency and of mass. It is the name of the currencies of Morocco, the United Arab Emirates and Armenia, and is the name of a currency subdivision in Jordan, Libya, Qatar and Tajikistan. It was historically a silver coin.

ancient unit of mass

unit of mass equal to that of Earth

The quintal or centner is a historical unit of mass in many countries that is usually defined as 100 base units, such as pounds or kilograms. It is a traditional unit of weight in France, Portugal, and Spain and their former colonies. It is commonly used for grain prices in wholesale markets in Ethiopia, Eritrea and India, where 1 quintal = .

mass of planet Jupiter, used as unit of mass

unit of mass

thumb|300px|An electrum Carthaginian shekel, c. 310–290 BC, bearing the image of [[Tanit, consort of Baal Hammon]] A shekel or sheqel (; , , plural , ) is an ancient Mesopotamian coin, usually of silver. A shekel was first a unit of weight of a value that varied over time and by issuing authority. It was also used in ancient Tyre, Carthage, Philistia and Hasmonean Judea.

ancient Near Eastern unit of weight

thumb|right| A 16kg kettlebell - one pood rounded to the nearest whole metric unit The pood (, plural: or ) is an obsolete Russian unit of mass equal to 40 funt (, Russian pound). Since 1899, it has been set to approximately 16.38 kilograms (36.11 pounds). The pood was first mentioned in the 12th century.

In the metric system, a microgram or microgramme is a unit of mass equal to one millionth () of a gram. Two different abbreviations are commonly used. The International System of Units (SI) uses μg, where the SI prefix "micro-" is represented by the Greek letter μ (mu). The abbreviation mcg is preferred for medical information in the United States (US), but prescription writing guidance in the United Kingdom advises that "microgram" should not be abbreviated. A third abbreviation, the Greek letter γ (gamma), is no longer recommended. The US Institute for Safe Medication Practices (ISMP) and th

unit of mass used in many Commonwealth countries

informal unit of measure equal to 14 pounds avoirdupois

U.S. unit of mass (2,000 pounds or 907.18474 kg)

Traditional Asian unit of mass

The hundredweight (abbreviation: cwt), formerly also known as the centum weight or quintal, is a British imperial and United States customary unit of weight or mass. Its value differs between the United States customary and British imperial systems. The two values are distinguished in American English as the short and long hundredweight and in British English as the cental and imperial hundredweight.

thumb|upright=1.2|Finely crafted pan balance or scales with boxed set of standardized gram weights sequenced in units of mass.Avoirdupois (; abbreviated avdp.) is a measurement system of weights that uses pounds and ounces as units. It was first commonly used in the 13th century AD and was updated in 1959.

Traditional Chinese unit of weight

unit of mass for gold and silver

unit of mass

thumb|180px|Gold dinar of Umayyad Caliph [[Abd al-Malik ibn Marwan, minted at Damascus, Syria in AH 75 (697/698 CE), having a weight of almost 1 mithqāl (5 grams)]]

unit of mass used in the Ottoman Empire

A ton is any of several units of measure of mass, volume or force. It has a long history and has acquired several meanings and uses.

pre-decimal currency structure/system once common throughout Europe, said to be introduced by Charlemagne in the 8. century CE

unit of mass or volume in different systems

''', meaning a tiny stone (from ' sharp stone), indicates a weight of of a Roman ounce (i.e.) or, by extension, of other measures. Metaphorically, the stone is thought to be sharp and pricking, like a thorn.

system of units of mass used for bullion

unit of mass

Ottoman measure of mass and volume

Arroba is a Portuguese, Catalan and Aragonese customary unit of weight, mass or volume. Its symbol is @.

thumb|Round grivna (about ) thumb|Triangular Novgorod grivnas excavated near Koporye thumb|100px|Kievan rhombic grivna thumb|A hoard of rhombic Kievan grivnas at Moscow State Historical Museum

The picul , shi (), dan or tam, is a traditional Asian unit of weight, defined as "as much as a man can carry on a shoulder-pole". Throughout most of Chinese history, it was defined as equivalent to 120 catties. Some later definitions (British Hong Kong, Chinese market-use system) define it as 100 catties. It is most commonly used in southern China and Maritime Southeast Asia.

historical system of mass and volume units that were used by physicians and apothecaries for medical recipes

ancient Egyptian weight unit

A kantar is the official Egyptian weight unit for measuring cotton. It corresponds to the US hundredweight, and is roughly equal to 99.05 pounds, or 45.02 kilograms. It is equal to either 157 kilograms of seed cotton or 50 kilograms of lint cotton.

thumb|[[Platinum coin of 1834 worth 3 rubles; text around the edge translates as "2 zol[otniks] 41 dol[yas] of pure Ural platinum." (10.353 grams, 0.3652 troy oz)]] A zolotnik (, abbr.: zol.) is an obsolete Russian unit of weight, equal to 0.1505 avoirdupois ounces, 0.13715 troy ounce, or 4.2658 grams (about 65.83 grains). Used from the 10th to 20th centuries, its name is derived from the Russian word зо́лото /zóloto/, meaning gold. As a unit, the zolotnik was the standard for silver manufacture, much as the troy ounce is currently used for gold and other precious metals.

physical artifact that formerly defined the kilogram unit of mass

A candareen (; ; Singapore English usage: hoon) is a traditional measurement of weight in East Asia. It is equal to 10 cash and is of a mace. It is approximately 378 milligrams. A troy candareen is approximately .

predecessor of the kilogram

former Chinese unit of weight and currency

The myriagram () is a former French and metric unit of mass equal to 10,000 grams (myriad being the Greek word for ten thousand). Although never as widely used as the kilogram, the myriagram was employed during the 19th century as a replacement for the earlier American customary system quarter, which was equal to .

mass unit in the apothecaries' system

thumb|Irish gold pistole, bearing its weight (4 dwt 7 gr) ([[National Museum of Ireland – Decorative Arts and History)]] A pennyweight (dwt) is a unit of mass equal to 24 grains, of a troy ounce, of a troy pound, avoirdupois ounce and exactly 1.55517384 grams. It is abbreviated dwt, d standing for denarius (an ancient Roman coin), and later used as the symbol of an old British penny (see £sd).

The adarme is an antiquated Spanish unit of mass, equal to three tomines, equivalent to . The term derives from the Arabic درهم, parallel with drachm and the Greek and persists in Spanish as an idiom for something insignificant or which exists in small quantity.

historical measure of weight, mainly for silver, and unit of exchange

unit of mass

English unit of weight or mass used for coal and wool

Unit of weight and coinage

old Asian unit of mass

obsolete unit of measurement

The Wiardunek (also referred to as wiardunk, czwartak or ferton; , ) was a Mediaeval Central European unit of mass most widely used in Poland and Germany. Wiardunek was also used as a unit of account, and as a such as commodity money.

The esterlin is an obsolete French unit of mass weighing about 1.5138 gram. It was used as a unit of mass for gold in France weighing 28 ½ Grain. In the Austrian Netherlands its place in the unit-chain was 1 livre or pond/pound = 2 mark = 16 once = 320 esterlin = 1280 felins = 10240 aß = 1 pond troy of Holland 1 pond = 320 esterlin = 49.215,18 centigram In Belgium, it was valid that 1 livre = 1000 esterlin = 1000 gram