Kilowatt-hour

kilowatt-hour
Residential electricity meter located in Canada
General information
Unit system	Non-SI metric
Unit of	Energy
Symbol	kW⋅h, kW h
Conversions
1 kW⋅h in ...	... is equal to ...
SI units	3.6 MJ
CGS units	3.6×1013 erg
English Engineering units	≈ 2,655,224 ft⋅lbf
British Gravitational units	≈ 85,429,300 ft⋅pdl

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. Metric prefixes are used for multiples and submultiples of the basic unit, the watt-hour (3.6 kJ).