Kilojoule (kJ)
The kilojoule is a unit of energy, used for food energy labeling, exercise physiology, and heating calculations. Its symbol is kJ.
kJ
kWh
1 kilojoule equals
| Kilowatt-hours | 0.000277778 kWh |
| Kilocalories | 0.239006 kcal |
| Joules | 1,000 J |
| British Thermal Units | 0.947817 BTU |
About the kilojoule
The kilojoule became the official unit for food energy in many countries as part of SI adoption, appearing on nutrition labels across Europe and Australia.
In everyday use the kilojoule appears in food energy labeling, exercise physiology, and heating calculations. As a point of reference: a banana contains about 400 kJ of food energy.