Joule to Kilojoule Conversion | Convert J to kJ Online

Convert Joule (J) to Kilojoule (kJ) quickly and accurately with our convenient online conversion tool. Get precise and instant Joule to Kilojoule conversions. Start converting J to kJ now!

kilojoule [kJ] To joule [J] joule [J] To kilojoule [kJ] kilowatt-hour [kW*h] To joule [J] joule [J] To kilowatt-hour [kW*h] watt-hour [W*h] To joule [J] joule [J] To watt-hour [W*h] calorie (nutritional) To joule [J] joule [J] To calorie (nutritional) horsepower (metric) hour To joule [J] joule [J] To horsepower (metric) hour Btu (IT) [Btu (IT), Btu] To joule [J] joule [J] To Btu (IT) [Btu (IT), Btu] Btu (th) [Btu (th)] To joule [J] joule [J] To Btu (th) [Btu (th)] gigajoule [GJ] To joule [J] joule [J] To gigajoule [GJ] megajoule [MJ] To joule [J] joule [J] To megajoule [MJ] millijoule [mJ] To joule [J] joule [J] To millijoule [mJ] microjoule [µJ] To joule [J] joule [J] To microjoule [µJ] nanojoule [nJ] To joule [J] joule [J] To nanojoule [nJ] attojoule [aJ] To joule [J] joule [J] To attojoule [aJ] megaelectron-volt [MeV] To joule [J] joule [J] To megaelectron-volt [MeV] kiloelectron-volt [keV] To joule [J] joule [J] To kiloelectron-volt [keV] electron-volt [eV] To joule [J] joule [J] To electron-volt [eV] erg To joule [J] joule [J] To erg gigawatt-hour [GW*h] To joule [J] joule [J] To gigawatt-hour [GW*h] megawatt-hour [MW*h] To joule [J] joule [J] To megawatt-hour [MW*h] kilowatt-second [kW*s] To joule [J] joule [J] To kilowatt-second [kW*s] watt-second [W*s] To joule [J] joule [J] To watt-second [W*s] newton meter [N*m] To joule [J] joule [J] To newton meter [N*m] horsepower hour [hp*h] To joule [J] joule [J] To horsepower hour [hp*h] kilocalorie (IT) [kcal (IT)] To joule [J] joule [J] To kilocalorie (IT) [kcal (IT)] kilocalorie (th) [kcal (th)] To joule [J] joule [J] To kilocalorie (th) [kcal (th)] calorie (IT) [cal (IT), cal] To joule [J] joule [J] To calorie (IT) [cal (IT), cal] calorie (th) [cal (th)] To joule [J] joule [J] To calorie (th) [cal (th)] mega Btu (IT) [MBtu (IT)] To joule [J] joule [J] To mega Btu (IT) [MBtu (IT)] ton-hour (refrigeration) To joule [J] joule [J] To ton-hour (refrigeration) fuel oil equivalent @kiloliter To joule [J] joule [J] To fuel oil equivalent @kiloliter fuel oil equivalent @barrel (US) To joule [J] joule [J] To fuel oil equivalent @barrel (US) gigaton [Gton] To joule [J] joule [J] To gigaton [Gton] megaton [Mton] To joule [J] joule [J] To megaton [Mton] kiloton [kton] To joule [J] joule [J] To kiloton [kton] ton (explosives) To joule [J] joule [J] To ton (explosives) dyne centimeter [dyn*cm] To joule [J] joule [J] To dyne centimeter [dyn*cm] gram-force meter [gf*m] To joule [J] joule [J] To gram-force meter [gf*m] gram-force centimeter To joule [J] joule [J] To gram-force centimeter kilogram-force centimeter To joule [J] joule [J] To kilogram-force centimeter kilogram-force meter To joule [J] joule [J] To kilogram-force meter kilopond meter [kp*m] To joule [J] joule [J] To kilopond meter [kp*m] pound-force foot [lbf*ft] To joule [J] joule [J] To pound-force foot [lbf*ft] pound-force inch [lbf*in] To joule [J] joule [J] To pound-force inch [lbf*in] ounce-force inch [ozf*in] To joule [J] joule [J] To ounce-force inch [ozf*in] foot-pound [ft*lbf] To joule [J] joule [J] To foot-pound [ft*lbf] inch-pound [in*lbf] To joule [J] joule [J] To inch-pound [in*lbf] inch-ounce [in*ozf] To joule [J] joule [J] To inch-ounce [in*ozf] poundal foot [pdl*ft] To joule [J] joule [J] To poundal foot [pdl*ft] therm To joule [J] joule [J] To therm therm (EC) To joule [J] joule [J] To therm (EC) therm (US) To joule [J] joule [J] To therm (US) Hartree energy To joule [J] joule [J] To Hartree energy Rydberg constant To joule [J] joule [J] To Rydberg constant

Please provide values below to convert Joule To Kilojoule, or vice versa.
Joule
Kilojoule
Result:

kilojoule [kJ]

joule [J]

Definition:

The joule is the SI unit of energy, defined as the amount of work done by a force of one newton acting over a distance of one meter.

History/origin:

The joule was named after the English physicist James Prescott Joule, who discovered the relationship between heat and mechanical work in the mid-19th century. The joule was first defined as a unit of energy in 1889 by the British Association for the Advancement of Science.

Current use:

The joule is widely used in physics and engineering to measure energy and work. It is commonly used in the fields of mechanics, thermodynamics, and electromagnetism. The joule is also used in everyday life, such as to measure the energy content of food or the capacity of batteries.



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