# Kilowatt-hours to Megajoules Conversion

Enter the energy in kilowatt-hours below to get the value converted to megajoules.

**Results in Megajoules:**

## How to Convert Kilowatt-hours to Megajoules

To convert a kilowatt-hour measurement to a megajoule measurement, multiply the energy by the conversion ratio. One kilowatt-hour is equal to 3.6 megajoules, so use this simple formula to convert:

The energy in megajoules is equal to the kilowatt-hours multiplied by 3.6.

**For example,**here's how to convert 5 kilowatt-hours to megajoules using the formula above.

Kilowatt-hours and megajoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

## Kilowatt-hours

A kilowatt-hour is a measure of electrical energy equal to one kilowatt, or 1,000 watts, of power over a one hour period. Kilowatt-hours are a measure of electrical work performed over a period of time, and are often used as a way of measuring energy usage by electric companies.

Kilowatt-hours are usually abbreviated as *kWh*, although the formally adopted expression is *kW·h*. The abbreviation *kW h* is also sometimes used. For example, 1 kilowatt-hour can be written as 1 kWh, 1 kW·h, or 1 kW h.

In formal expressions, the centered dot (·) or space is used to separate units used to indicate multiplication in an expression and to avoid conflicting prefixes being misinterpreted as a unit symbol.^{[1]}

## Megajoules

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

The megajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "mega" is the prefix for 10^{6}. Megajoules can be abbreviated as *MJ*; for example, 1 megajoule can be written as 1 MJ.

## Kilowatt-hour to Megajoule Conversion Table

Kilowatt-hours | Megajoules |
---|---|

1 kWh | 3.6 MJ |

2 kWh | 7.2 MJ |

3 kWh | 10.8 MJ |

4 kWh | 14.4 MJ |

5 kWh | 18 MJ |

6 kWh | 21.6 MJ |

7 kWh | 25.2 MJ |

8 kWh | 28.8 MJ |

9 kWh | 32.4 MJ |

10 kWh | 36 MJ |

11 kWh | 39.6 MJ |

12 kWh | 43.2 MJ |

13 kWh | 46.8 MJ |

14 kWh | 50.4 MJ |

15 kWh | 54 MJ |

16 kWh | 57.6 MJ |

17 kWh | 61.2 MJ |

18 kWh | 64.8 MJ |

19 kWh | 68.4 MJ |

20 kWh | 72 MJ |

21 kWh | 75.6 MJ |

22 kWh | 79.2 MJ |

23 kWh | 82.8 MJ |

24 kWh | 86.4 MJ |

25 kWh | 90 MJ |

26 kWh | 93.6 MJ |

27 kWh | 97.2 MJ |

28 kWh | 100.8 MJ |

29 kWh | 104.4 MJ |

30 kWh | 108 MJ |

31 kWh | 111.6 MJ |

32 kWh | 115.2 MJ |

33 kWh | 118.8 MJ |

34 kWh | 122.4 MJ |

35 kWh | 126 MJ |

36 kWh | 129.6 MJ |

37 kWh | 133.2 MJ |

38 kWh | 136.8 MJ |

39 kWh | 140.4 MJ |

40 kWh | 144 MJ |

## References

- Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf