Joules to Kilojoules

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j
kj
1 j = — kj

Quick reference

Joules (j)Kilojoules (kj)

Formula

Kilojoules = joules ÷ 1000

Multiply the joules value by 0.001 to get kilojoules. To reverse — divide kilojoules by 0.001 to get joules.

About this conversion

The joule (J) is the SI unit of energy, equal to the work done by a force of one newton over one meter. Learn more →

The kilojoule (kJ) equals 1,000 joules, commonly used in food energy and thermodynamics. Learn more →

Source: NIST International Reference