Convert joules to kilojoules

Energy, J =
Energy, kJ =


Convert kilojoules to joules


Energy, kJ =
Energy, J =



With this online calculator you can convert J to kJ (joules to kilojoules) and vice versa.

Formula:

1 kJ = 1000 J

Energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object.