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.

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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 Joules0.001 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## More Kilojoule & Joule Conversions

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