SettingsSystems of units
Ancient Egyptian units of measurement
Ancient Egyptian units of measure include units for length, area and volume.
Ancient Egyptian units of measure include units for length, area and volume.
Ancient Greek units of measurement
Ancient Greek units of measurement varied according to location and epoch.
Ancient Greek units of measurement varied according to location and epoch.
Ancient Mesopotamian units of measurement
Ancient Mesopotamian units of measurement originated in the loosely organized city-states of Early Dynastic Sumer.
Ancient Mesopotamian units of measurement originated in the loosely organized city-states of Early Dynastic Sumer.
Anthropic units
The term anthropic units is a neologism for units of measurement which are assumed to have explicitly arisen from human physiology or behavior.
The term anthropic units is a neologism for units of measurement which are assumed to have explicitly arisen from human physiology or behavior.
Astronomical system of units
The astronomical system of units, formally called the IAU (1976) System of Astronomical Constants, is a system of measurement developed for use in astronomy.
The astronomical system of units, formally called the IAU (1976) System of Astronomical Constants, is a system of measurement developed for use in astronomy.
Atomic units
Atomic units (au or a.u.
Atomic units (au or a.u.
Biblical and Talmudic units of measurement
Biblical and Talmudic units of measurement, such as the Omer, used primarily by ancient Israelites, appear frequently within the Hebrew Bible as well as in later Judaic scripture, such as the Mi...
Biblical and Talmudic units of measurement, such as the Omer, used primarily by ancient Israelites, appear frequently within the Hebrew Bible as well as in later Judaic scripture, such as the Mi...
Burmese units of measurement
Burmese units or the Burmese system is a collection of units of measurement used in Burma.
Burmese units or the Burmese system is a collection of units of measurement used in Burma.
Centimetre gram second system of units
The centimetre-gram-second system is a metric system of physical units based on centimetre as the unit of length, gram as a unit of mass, and second as a unit of time.
The centimetre-gram-second system is a metric system of physical units based on centimetre as the unit of length, gram as a unit of mass, and second as a unit of time.
Centimetre-gram-second system of units
The centimetre-gram-second system (abbreviated CGS or cgs) is a metric system of physical units based on centimetre as the unit of length, gram as a unit of mass, and second as a uni...
The centimetre-gram-second system (abbreviated CGS or cgs) is a metric system of physical units based on centimetre as the unit of length, gram as a unit of mass, and second as a uni...
Chinese units of measurement
Chinese units of measurement are the customary and traditional units of measure used in China.
Chinese units of measurement are the customary and traditional units of measure used in China.
Conventional electrical unit
A conventional electrical unit (is also known as a electrical symbol) (or simply conventional unit where there is no risk of ambiguity) is a unit of measurement in the field of electricity...
A conventional electrical unit (is also known as a electrical symbol) (or simply conventional unit where there is no risk of ambiguity) is a unit of measurement in the field of electricity...
Decuriae
Decuriae was a Roman unit of measurement applied to civitas of native peoples.
Decuriae was a Roman unit of measurement applied to civitas of native peoples.
FFF system
The Furlong/Firkin/Fortnight system is a set of units that uses impractical measurements not seriously deemed suitable for scientific or engineering use.
The Furlong/Firkin/Fortnight system is a set of units that uses impractical measurements not seriously deemed suitable for scientific or engineering use.
Finnish obsolete units of measurement
The Finnish obsolete units of measurement consist mostly of a variety of units traditionally used in Finland that are similar to those that were traditionally used in other countries and are sti...
The Finnish obsolete units of measurement consist mostly of a variety of units traditionally used in Finland that are similar to those that were traditionally used in other countries and are sti...
Finnish units of measurement
In Finland, approximate units of measure were derived from natural actions or objects such body parts, later standardised for the purpose of commerce.
In Finland, approximate units of measure were derived from natural actions or objects such body parts, later standardised for the purpose of commerce.
Foot-pound-second system
The pound-force (symbol: lbF, lb, from Latin libra ‘pound’ and the symbol F for force) is a unit of force in systems of measurement including English Engineering units an...
The pound-force (symbol: lbF, lb, from Latin libra ‘pound’ and the symbol F for force) is a unit of force in systems of measurement including English Engineering units an...
Geometrized unit system
A geometrized unit system or geometric unit system is a system of natural units in which the base physical units are chosen so that the speed of light in a vacuum, c, and the gravitati...
A geometrized unit system or geometric unit system is a system of natural units in which the base physical units are chosen so that the speed of light in a vacuum, c, and the gravitati...
German obsolete units of measurement
The obsolete units of measurement of German-speaking countries consist mostly of a variety of units that are similar to those that were traditionally used in other countries and are still used i...
The obsolete units of measurement of German-speaking countries consist mostly of a variety of units that are similar to those that were traditionally used in other countries and are still used i...
German units of measurement
Germany had an indigenous system of German units of measurement prior to its adoption of the international metric system.
Germany had an indigenous system of German units of measurement prior to its adoption of the international metric system.
Gravitational metric system
In the gravitational metric system(s) the base unit of force is not normalised to one mass unit (gram or kilogram) times one length unit (metre or centimetre) per time unit squared (second) as i...
In the gravitational metric system(s) the base unit of force is not normalised to one mass unit (gram or kilogram) times one length unit (metre or centimetre) per time unit squared (second) as i...
History of measurement systems in India
The history of measurement systems in India begins in early Indus Valley Civilization with the earliest surviving samples dated to the 5th millennium BCE. Since early times the adoption of stand...
The history of measurement systems in India begins in early Indus Valley Civilization with the earliest surviving samples dated to the 5th millennium BCE. Since early times the adoption of stand...
Hong Kong units of measurement
Hong Kong units of measurement is based on the measurement units of Chinese of Qing Empire, British Imperial and metric.
Hong Kong units of measurement is based on the measurement units of Chinese of Qing Empire, British Imperial and metric.
Imperial units
The system of imperial units or the imperial system is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced.
The system of imperial units or the imperial system is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced.
International System of Units
The International System of Units is the modern form of the metric system and is generally a system of units of measurement devised around seven base units and the convenience of the number ten.
The International System of Units is the modern form of the metric system and is generally a system of units of measurement devised around seven base units and the convenience of the number ten.
ISO 31-1
ISO 31-1 is the part of international standard ISO 31 that defines names and symbols for quantities and units related to space and time.
ISO 31-1 is the part of international standard ISO 31 that defines names and symbols for quantities and units related to space and time.
Japanese units of measurement
Shakkan-hō is the traditional Japanese system of measurement.
Shakkan-hō is the traditional Japanese system of measurement.
Mesh (scale)
Mesh material is often used in determining the particle size distribution of a granular material.
Mesh material is often used in determining the particle size distribution of a granular material.
Mesures usuelles
Mesures usuelles were a system of measurement introduced by Napoleon I in 1812 to act as compromise between the metric system and traditional measurements.
Mesures usuelles were a system of measurement introduced by Napoleon I in 1812 to act as compromise between the metric system and traditional measurements.
Metre Convention
Metre Convention of May 20, 1875 is a treaty which established three international organizations to oversee the keeping of metric standards.
Metre Convention of May 20, 1875 is a treaty which established three international organizations to oversee the keeping of metric standards.
Metre-tonne-second system of units
The metre-tonne-second or mts system of units is a system of physical units.
The metre-tonne-second or mts system of units is a system of physical units.
Metric system
The metric system is an international decimalised system of measurement that was originally based on the mètre des archives and the kilogramme des archives introduced by France in 1799.
The metric system is an international decimalised system of measurement that was originally based on the mètre des archives and the kilogramme des archives introduced by France in 1799.
Metrication
Metrication refers to the introduction and use of the SI metric system, the international standard for physical measurements.
Metrication refers to the introduction and use of the SI metric system, the international standard for physical measurements.
MKS system of units
The MKS system of units is a physical system of units that expresses any given measurement using fundamental units of the metre, kilogram, and/or second.
The MKS system of units is a physical system of units that expresses any given measurement using fundamental units of the metre, kilogram, and/or second.
National Physical Laboratory of India
The National Physical Laboratory of India, situated in New Delhi, is the measurement standards laboratory of India.
The National Physical Laboratory of India, situated in New Delhi, is the measurement standards laboratory of India.
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 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.
Plan for Establishing Uniformity in the Coinage, Weights, and Measures of the United States
The "Plan for Establishing Uniformity in the Coinage, Weights, and Measures of the United States" was a report submitted to the U.S. House of Representatives on July 13, 1790 by Secretary of Sta...
The "Plan for Establishing Uniformity in the Coinage, Weights, and Measures of the United States" was a report submitted to the U.S. House of Representatives on July 13, 1790 by Secretary of Sta...
Portuguese customary units
The Portuguese customary units were used in Portugal, Brazil and other parts of the Portuguese Empire until the adoption of the Metric System in the 19th century.
The Portuguese customary units were used in Portugal, Brazil and other parts of the Portuguese Empire until the adoption of the Metric System in the 19th century.
Pyeong
A pyeong(or pronounced as tsubo in Japanese, píng
ㄆㄧㄥˊ
In Chinese) is a unit of the size of rooms or buildings in Korea, Japan, China and Taiwan equal to square metres (3.3058 m^^^...
A pyeong(or pronounced as tsubo in Japanese, píng
ㄆㄧㄥˊ
In Chinese) is a unit of the size of rooms or buildings in Korea, Japan, China and Taiwan equal to square metres (3.3058 m^^^...
Romanian units of measurement
The measures of the old Romanian system varied greatly not only between the three Romanian states (Wallachia, Moldavia, Transylvania), but sometimes also inside the same country.
The measures of the old Romanian system varied greatly not only between the three Romanian states (Wallachia, Moldavia, Transylvania), but sometimes also inside the same country.
Sound unit
A sound unit is any acoustic unit of sound measurement.
A sound unit is any acoustic unit of sound measurement.
Spanish customary units
There are a number of Spanish units of measurement of length or area that are now virtually obsolete (due to metrication).
There are a number of Spanish units of measurement of length or area that are now virtually obsolete (due to metrication).
Swedish units of measurement
In Sweden, a common system for weights and measures was introduced by law in 1665.
In Sweden, a common system for weights and measures was introduced by law in 1665.
Systems of measurement
A system of measurement is a set of dudes which can be used to specify anything which can be measured and were historically important, regulated and defined because of trade and internal commerce.
A system of measurement is a set of dudes which can be used to specify anything which can be measured and were historically important, regulated and defined because of trade and internal commerce.
Taiwanese units of measurement
Taiwanese units of measurement are the customary and traditional units of measure used in Taiwan.
Taiwanese units of measurement are the customary and traditional units of measure used in Taiwan.
Traditional measurement systems
A system of measurement is a set of units which can be used to specify anything which can be measured and were historically important, regulated and defined because of trade and internal commerce.
A system of measurement is a set of units which can be used to specify anything which can be measured and were historically important, regulated and defined because of trade and internal commerce.
Traditional Turkish units of measurement
The list of traditional Turkish units of measurement, aka Ottoman units of measurement, is given below.
The list of traditional Turkish units of measurement, aka Ottoman units of measurement, is given below.
Troy weight
Troy weight is a system of units of mass customarily used for precious metals, gemstones, and black powder.
Troy weight is a system of units of mass customarily used for precious metals, gemstones, and black powder.
United States customary units
United States customary units are a system of measurements commonly used in the United States.
United States customary units are a system of measurements commonly used in the United States.
Units of measurement
A unit of measurement is a definite magnitude of a physical quantity, defined and adopted by convention and/or by law, that is used as a standard for measurement of the same physical quantity.
A unit of measurement is a definite magnitude of a physical quantity, defined and adopted by convention and/or by law, that is used as a standard for measurement of the same physical quantity.
Units of measurement in France before the French Revolution
The units of measurement in France before the French Revolution were based on the Carolingian system, introduced by the first Holy Roman Emperor Charlemagne which in turn were based on ancient ...
The units of measurement in France before the French Revolution were based on the Carolingian system, introduced by the first Holy Roman Emperor Charlemagne which in turn were based on ancient ...
Winchester measure
Winchester measure is a set of legal standards of volume defined in the city of Winchester, England during the tenth century and in use, with some modifications, until the present day.
Winchester measure is a set of legal standards of volume defined in the city of Winchester, England during the tenth century and in use, with some modifications, until the present day.
Yoke (unit of measurement)
A yoke was land measurement used in Kent in England at the time of the Domesday Book for tax purposes.
A yoke was land measurement used in Kent in England at the time of the Domesday Book for tax purposes.