How many joules in 1 kilojoule? The answer is 1000. We assume you are converting between joule and kilojoule. You can view more details on each measurement unit: joules or kilojoule The SI derived unit for energy is the joule. 1 joule is equal to 0.001 kilojoule. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between joules and kilojoules. Type in your own numbers in the form to convert the units!
1 joules to kilojoule = 0.001 kilojoule
10 joules to kilojoule = 0.01 kilojoule
50 joules to kilojoule = 0.05 kilojoule
100 joules to kilojoule = 0.1 kilojoule
200 joules to kilojoule = 0.2 kilojoule
500 joules to kilojoule = 0.5 kilojoule
1000 joules to kilojoule = 1 kilojoule
You can do the reverse unit conversion from kilojoule to joules, or enter any two units below:
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).
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).
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