Full name: kilojoule
Plural form: kilojoules
Category type: energy
Scale factor: 1000
The SI derived unit for energy is the joule.
1 joule is equal to 0.001 kilojoules.
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The SI prefix "kilo" represents a factor of 103, or in exponential notation, 1E3.
So 1 kilojoule = 103 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).