Full name: gigajoule
Plural form: gigajoules
Symbol: GJ
Category type: energy
Scale factor: 1000000000
The SI derived unit for energy is the joule.
1 joule is equal to 1.0E-9 gigajoule.
Valid units must be of the energy type.
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The SI prefix "giga" represents a factor of 109, or in exponential notation, 1E9.
So 1 gigajoule = 109 joules.
The definition of a joule is as follows:
The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work. The unit is pronounced to rhyme with "tool", and is named in honor of the physicist James Prescott Joule (1818-1889).