To convert a kilojoule measurement to a joule measurement, multiply the energy by the conversion ratio.

Since one kilojoule is equal to 1,000 joules, you can use this simple formula to convert:


How Many Joules are in a Kilojoule?

There are 1,000 joules in a kilojoule, which is why we use this value in the formula above.

1 kJ = 1,000 J

Kilojoules and joules are both units used to measure energy. Keep reading to learn more about each unit of measure.

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Kilojoules

One kilojoule is equal to 1,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The kilojoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "kilo" is the prefix for 103. Kilojoules can be abbreviated as kJ; for example, 1 kilojoule can be written as 1 kJ.

Joules

The joule is the energy equal to the force on an object of one newton at a distance of one meter.<1> One joule is equal to the heat energy dissipated by the current of one ampere through one ohm of resistance for one second.

See more: How Many Kilos Is 210 Pounds, 210 Pounds To Kilograms Conversion

One joule is also equal to the energy needed to move an electric charge of one coulomb through a potential difference of one volt. In addition, one joule is also equal to the one watt-second.

The joule is the SI derived unit for energy in the metric system. Joules can be abbreviated as J; for example, 1 joule can be written as 1 J.


Kilojoule to Joule Conversion Table

Kilojoule measurements converted to joules Kilojoules Joules
0.001 kJ 1 J
0.002 kJ 2 J
0.003 kJ 3 J
0.004 kJ 4 J
0.005 kJ 5 J
0.006 kJ 6 J
0.007 kJ 7 J
0.008 kJ 8 J
0.009 kJ 9 J
0.01 kJ 10 J
0.02 kJ 20 J
0.03 kJ 30 J
0.04 kJ 40 J
0.05 kJ 50 J
0.06 kJ 60 J
0.07 kJ 70 J
0.08 kJ 80 J
0.09 kJ 90 J
0.1 kJ 100 J
0.2 kJ 200 J
0.3 kJ 300 J
0.4 kJ 400 J
0.5 kJ 500 J
0.6 kJ 600 J
0.7 kJ 700 J
0.8 kJ 800 J
0.9 kJ 900 J
1 kJ 1,000 J

References

International Bureau of Weights and Measures, The International System of Units, 9th Edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

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