Joule (J)
Kilojoule (kJ)
Megajoule (MJ)
Gigajoule (GJ)
Kilowatt-hour (kWh)
Megawatt-hour (MWh)
Watt-hour (Wh)
Calorie (cal)
Kilocalorie (kcal)
British Thermal Unit (BTU)
Therm (therm)
Quad (quad)
Electronvolt (eV)
Kiloelectronvolt (keV)
Megaelectronvolt (MeV)
Gigaelectronvolt (GeV)
Erg (erg)
Foot-pound (ft·lb)
Inch-pound (in·lb)
Newton-meter (N·m)
Dyne-centimeter (dyn·cm)
Gram-force-centimeter (gf·cm)
Kilogram-force-meter (kgf·m)
Pound-force-foot (lbf·ft)
Pound-force-inch (lbf·in)
Horsepower-hour (hp·h)
Ton-hour (Refrigeration) (ton·h)
Barrel Oil Equivalent (BOE)
Ton Coal Equivalent (TCE)
Ton Oil Equivalent (TOE)
Gallon Gasoline Equivalent (GGE)
Liter Gasoline Equivalent (LGE)
Joule (J)
Kilojoule (kJ)
Megajoule (MJ)
Gigajoule (GJ)
Kilowatt-hour (kWh)
Megawatt-hour (MWh)
Watt-hour (Wh)
Calorie (cal)
Kilocalorie (kcal)
British Thermal Unit (BTU)
Therm (therm)
Quad (quad)
Electronvolt (eV)
Kiloelectronvolt (keV)
Megaelectronvolt (MeV)
Gigaelectronvolt (GeV)
Erg (erg)
Foot-pound (ft·lb)
Inch-pound (in·lb)
Newton-meter (N·m)
Dyne-centimeter (dyn·cm)
Gram-force-centimeter (gf·cm)
Kilogram-force-meter (kgf·m)
Pound-force-foot (lbf·ft)
Pound-force-inch (lbf·in)
Horsepower-hour (hp·h)
Ton-hour (Refrigeration) (ton·h)
Barrel Oil Equivalent (BOE)
Ton Coal Equivalent (TCE)
Ton Oil Equivalent (TOE)
Gallon Gasoline Equivalent (GGE)
Liter Gasoline Equivalent (LGE)
1 joule = 0.001 kilojoule.
To convert joule to kilojoule, multiply the value by 0.001.
Example: 20 J = 0.02 kJ.
Joule to Kilojoule conversion table
| Joule | Kilojoule |
|---|---|
| 1 J | 0.001 kJ |
| 2 J | 0.002 kJ |
| 3 J | 0.003 kJ |
| 4 J | 0.004 kJ |
| 5 J | 0.005 kJ |
| 10 J | 0.01 kJ |
| 20 J | 0.02 kJ |
| 25 J | 0.025 kJ |
| 50 J | 0.05 kJ |
| 100 J | 0.1 kJ |
| 500 J | 0.5 kJ |
| 1,000 J | 1 kJ |
Related energy conversions
Frequently asked questions
- How many kilojoule are in a joule?
- There are 0.001 kilojoule in 1 joule.
- How do I convert joule to kilojoule?
- To convert joule to kilojoule, multiply the value by 0.001.