Joule to Kilojoule Converter
J
kJ
1. 1 J × 1 = 1 J
2. 1 J ÷ 1000 = 0.001 kJ
2. 1 J ÷ 1000 = 0.001 kJ
Unit Information
Joule (J)
The joule is the SI unit of energy. It is equal to the energy transferred when applying a force of one newton through a distance of one meter.
1 J = 0.001 kJ1 J = 0.000278 Wh1 J = 0.000948 BTU
Kilojoule (kJ)
The kilojoule is a unit of energy equal to 1000 joules. It is commonly used in food nutrition labels, physical chemistry, and some engineering applications.
1 kJ = 1000 J1 kJ = 0.278 Wh1 kJ = 0.948 BTU
Common Applications
Joule
- Physics calculations
- Mechanical work
- Electrical energy
- Food energy
Kilojoule
- Food nutrition labels
- Physical chemistry
- Heating and cooling systems
- Exercise energy expenditure
Examples
- 1000 J = 1 kJ
- A food item with 420 kJ = 420000 J
- Lifting a 1 kg weight 10 meters requires about 0.1 kJ (100 J)
- Running for 1 minute burns approximately 70 kJ (70000 J)
Visual Comparison
1 J = 0.001 kJ
1 kJ
Common Conversions:
Joule to KilojouleKilojoule to KilocalorieKilocalorie to CalorieKilowatt-hour to JouleElectron volt to JouleBritish Thermal Unit to JouleKilowatt-hour to KilocalorieBritish Thermal Unit to KilocalorieKilojoule to British Thermal UnitWatt-hour to JouleKilowatt-hour to Watt-hourTherm to British Thermal UnitKilojoule to JouleKilocalorie to KilojouleCalorie to KilocalorieJoule to Kilowatt-hourJoule to Electron voltJoule to British Thermal UnitKilocalorie to Kilowatt-hourKilocalorie to British Thermal UnitBritish Thermal Unit to KilojouleJoule to Watt-hourWatt-hour to Kilowatt-hourBritish Thermal Unit to Therm