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Energy (system unit unit-code symbol or abbrev. notes sample default conversion combination output units SI: gigajoule: GJ GJ 1.0 GJ (280 kWh) megajoule: MJ MJ 1.0 MJ (0.28 kWh)
Energy; system unit code (alternative) symbol or abbrev. notes sample default conversion combinations SI: yottajoule: YJ YJ 1.0 YJ (2.8 × 10 17 kWh) zettajoule: ZJ ZJ 1.0 ZJ (2.8 × 10 14 kWh)
1.0 TJ (280,000 kWh) gigajoule: GJ GJ 1.0 GJ (280 kWh) megajoule: MJ MJ 1.0 MJ (0.28 kWh) kilojoule: kJ kJ 1.0 kJ (240 cal) hectojoule: hJ hJ 1.0 hJ (24 cal) decajoule: daJ daJ 1.0 daJ (2.4 cal) joule: J J 1.0 J (0.24 cal) decijoule: dJ dJ 1.0 dJ (0.024 cal) centijoule: cJ cJ 1.0 cJ (0.0024 cal) millijoule: mJ mJ 1.0 mJ (0.00024 cal) microjoule ...
The alttype field allows conversion between units of different type, provided each unit is whitelisted to allow the conversion. As at December 2013, the following energy units have alttype = "torque" (the first line consists of different units, while the second line consists of aliases for units in the first line):
A kilowatt-hour (unit symbol: kW⋅h or kW h; commonly written as kWh) is a non-SI unit of energy equal to 3.6 megajoules (MJ) in SI units, which is the energy delivered by one kilowatt of power for one hour. Kilowatt-hours are a common billing unit for electrical energy supplied by electric utilities.
Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property.
On the customer bill, the electric utility states the amount of electric energy, in kilowatt-hours (kW·h), that the customer used since the last bill, and the cost of the energy per kilowatt-hour (kW·h). Air-conditioner sizes are often given as "tons" of cooling, where 1 ton of cooling equals 12,000 BTU/h (3.5 kW). 1 ton of cooling equals the ...
= 1 J = 1 m⋅N = 1 kg⋅m 2 /s 2 = 1 C⋅V = 1 W⋅s kilocalorie; large calorie: kcal; Cal ≡ 1000 cal IT = 4.1868 × 10 3 J: kilowatt-hour; Board of Trade Unit: kW⋅h; B.O.T.U. ≡ 1 kW × 1 h = 3.6 × 10 6 J: litre-atmosphere: l atm; sl ≡ 1 atm × 1 L = 101.325 J: quad: ≡ 10 15 BTU IT = 1.055 055 852 62 × 10 18 J: rydberg: Ry ≡ R ...