Kilojoule

A kilojoule (abbreviation: kJ) is a unit of energy equal to 1000 joules.

• One kJ is the amount of work done by a one kilowatt device in one second.
• One kJ is sufficient to melt 3 grams of ice at 0 °C
• Approximately one kJ of work is done when 100 kilograms is lifted through one meter at Earth's surface (or, if one kg is lifted through 100 meters).
• One kJ is equal to 5/18 (approx. 0.2778) of a watt hour.

See also

• SI
• joule
• SI prefix
• Orders of magnitude.