Metrication
Metrication or metrification is the conversion to the metric system of weights and measures. This has involved a long process of independent and systematic conversions of countries from various local ...
Metrication - Wikipedia
Watt second
A watt second (also watt-second, symbol W s or W·s) is a derived unit of energy equivalent to the joule.(Taylor & Thompson 2008, pp. 39–40, 53) The watt-second is the energy equiva...
Two-liter bottle
The two-liter bottle is a common container for soft drinks. These bottles are produced from polyethylene terephthalate, also known as PET plastic, using the blow molding process. Bottle labels consist...
Two-liter bottle - Wikipedia
Billion cubic metres of natural gas
Billion cubic metres of natural gas (abbreviated: bcm) is a measure of natural gas production and trade. Depending of implied standards, this measure may represent different value of energy content. ...
Erg
An erg (short for ergon, a Greek word meaning "work/task") is a unit of energy and mechanical work equal to 10 joules. It originated in the centimetre–gram–second (CGS) system of units, symbol "erg". ...
Erg - Wikipedia
Units conversion by factor-label
In engineering and science, dimensional analysis is the analysis of the relationships between different physical quantities by identifying their fundamental dimensions (such as length, mass, time, and...
Exaton
The tonne (/tʌn/) (British and SI; SI symbol: t) or metric ton (American) is a non-SI metric unit of mass equal to 1000 kilograms; it is thus equivalent to one megagram (Mg). 1,000 kilograms is equiva...
Watt-hour per kilogram
The watt-hour per kilogram (SI abbreviation: W⋅h/kg) is a unit of specific energy commonly used to measure the density of energy in batteries and capacitors. One watt-hour per kilogram is equal to 36...
Milliwatt hour
The kilowatt hour (symbol kWh, kW·h, or kW h) is a unit of energy equal to 1,000 watt-hours, or 3.6 megajoules. If the energy is being transmitted or used at a constant rate (power) over a p...
Foot-pound (energy)
The foot-pound force (symbol: ft·lbf or ft·lbf), or simply foot-pound (symbol: ft·lb) is a unit of work or energy in the Engineering and Gravitational Systems in United States customary and imperial u...
Petaton
The tonne (/tʌn/) (British and SI; SI symbol: t) or metric ton (American) is a non-SI metric unit of mass equal to 1000 kilograms; it is thus equivalent to one megagram (Mg). 1,000 kilograms is equiva...
ISO 216
ISO 216 specifies international standard (ISO) paper sizes used in most countries in the world today. The standard defines the "A" and "B" series of paper sizes, including A4, the most commonly availa...
ISO 216 - Wikipedia
History of computer hardware in Soviet Bloc countries
The history of computing hardware in the former Soviet Bloc is somewhat different from that of the Western world. As a result of the CoCom embargo, computers could not be imported on a large scale fro...
History of computer hardware in Soviet Bloc countries - Wikipedia
Gasoline gallon equivalent
Gasoline gallon equivalent (GGE) or gasoline-equivalent gallon (GEG) is the amount of alternative fuel it takes to equal the energy content of one liquid gallon of gasoline. GGE allows consumers to co...
Barrel of oil equivalent
The barrel of oil equivalent (BOE) is a unit of energy based on the approximate energy released by burning one barrel (42 U.S. gallons or 158.9873 litres) of crude oil. The BOE is used by oil and gas...
Cubic mile of oil
The cubic mile of oil (CMO) is a unit of energy. It was created by Hew Crane of SRI International to aid in public understanding of global-scale energy consumption and resources.Significant sources o...
Cubic mile of oil - Wikipedia
Conversion of units
Conversion of units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.
The process of conversion depends on the sp...
Metric foot
A metric foot is a nickname occasionally used in the United Kingdom for a length of 300 millimetres (30 cm). The 30 cm metric ruler was of a similar length to the traditional 12-inch (one f...
Conversion of units of temperature
This is a compendium of temperature conversion formulas and comparisons among eight different temperature scales, several of which have long been obsolete.
Ke (unit)
The ke (刻; pinyin: kè) is a traditional Chinese unit of decimal time lasting approximately a quarter of a western hour. Traditionally the ke divides a day into 100 equal intervals of 14.4 minutes (14 ...
ISO 217
The ISO 217:1995 standard defines the RA and SRA paper formats.These paper series are untrimmed raw paper. RA stands for “raw format A” and SRA stands for “supplementary raw format A”. The RA and SRA ...
Therm
The therm (symbol thm) is a non-SI unit of heat energy equal to 100,000 British thermal units (BTU). It is approximately the energy equivalent of burning 100 cubic feet (often referred to as 1 CCF) of...
Rydberg constant
The Rydberg constant, symbol R∞ or RH, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to atomic spectra, in the science of spectroscopy. The constant first arose a...
Kilokaiser
The Kaiser (K) is a unit of energy. A common form is kiloKaiser (kK). 1 kK = 1000 cm. ( cm, wavenumber or inverse wavelength.) This unit is most commonly used with respect to energy transitio...
Quad (unit)
A quad is a unit of energy equal to 10 (a short-scale quadrillion) BTU, or 1.055 × 10 joules (1.055 exajoules or EJ) in SI units.The unit is used by the U.S. Department of Energy in discussing wo...
Quad (unit) - Wikipedia
Units of energy
Because energy is defined via work, the SI unit for energy is the same as the unit of work – the joule (J), named in honor of James Prescott Joule and his experiments on the mechanical equivalen...
Decimal time
Decimal time is the representation of the time of day using units which are decimally related. This term is often used specifically to refer to French Revolutionary Time, which divided the day into 10...
Decimal time - Wikipedia
Foot-poundal
The Foot-poundal (symbol: ft-pdl) is a unit of energy that is part of the foot-pound-second system of units, in Imperial units introduced in 1879, and is from the specialized subsystem of English Abs...