# ››Measurement unit: kJ

Full name: kilojoule

Plural form: kilojoules

Symbol: kJ

Category type: energy

Scale factor: 1000

# ››SI unit: joule

The SI derived unit for energy is the joule.
1 joule is equal to 0.001 kJ.

# ››Convert kJ to another unit

Convert kJ to

Valid units must be of the energy type.
You can use this form to select from known units:

Convert kJ to

# ››Definition: Kilojoule

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).

# ››Sample conversions: kJ

kJ to tonne of oil equivalent
kJ to megaelectronvolt
kJ to teraelectronvolt
kJ to erg
kJ to gallon [UK] of residual fuel oil
kJ to kilowatt hour
kJ to British thermal unit
kJ to tonne of coal equivalent
kJ to megawatt hour
kJ to zettawatthour