Gigajoule

Units of energy and power
List of units	joule • erg • watt (hour) • electronvolt • calorie • horsepower (hour) • tonne of TNT
SI prefixes	gigajoule • megajoule • kilojoule • millijoule • microjoule • nanojoule • gigawatt • megawatt • kilowatt • milliwatt • microwatt • nanowatt