kilojoule

unitStandard termUnits

An SI unit of energy, work, or heat equal to 1,000 joules.

A standard metric unit of energy equivalent to 1,000 joules. It is heavily used in mechanical engineering to quantify work, in HVAC for heat transfer, and in nutritional science outside the US to measure food energy in place of calories.

Heard on the job

The motor dissipates about 400 kilojoules of heat per hour under full load.

Also heard as

  • kJ