# Gigajoules to Kilowatt-hours Conversion

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

**Results in Kilowatt-hours:**

## How to Convert Gigajoules to Kilowatt-hours

To convert a gigajoule measurement to a kilowatt-hour measurement, multiply the energy by the conversion ratio. One gigajoule is equal to 277.777778 kilowatt-hours, so use this simple formula to convert:

The energy in kilowatt-hours is equal to the gigajoules multiplied by 277.777778.

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

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

## Gigajoules

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

The gigajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "giga" is the prefix for 10^{9}. Gigajoules can be abbreviated as *GJ*, for example 1 gigajoule can be written as 1 GJ.

## 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]}

## Gigajoule to Kilowatt-hour Conversion Table

Gigajoules | Kilowatt-hours |
---|---|

1 GJ | 277.78 kWh |

2 GJ | 555.56 kWh |

3 GJ | 833.33 kWh |

4 GJ | 1,111 kWh |

5 GJ | 1,389 kWh |

6 GJ | 1,667 kWh |

7 GJ | 1,944 kWh |

8 GJ | 2,222 kWh |

9 GJ | 2,500 kWh |

10 GJ | 2,778 kWh |

11 GJ | 3,056 kWh |

12 GJ | 3,333 kWh |

13 GJ | 3,611 kWh |

14 GJ | 3,889 kWh |

15 GJ | 4,167 kWh |

16 GJ | 4,444 kWh |

17 GJ | 4,722 kWh |

18 GJ | 5,000 kWh |

19 GJ | 5,278 kWh |

20 GJ | 5,556 kWh |

21 GJ | 5,833 kWh |

22 GJ | 6,111 kWh |

23 GJ | 6,389 kWh |

24 GJ | 6,667 kWh |

25 GJ | 6,944 kWh |

26 GJ | 7,222 kWh |

27 GJ | 7,500 kWh |

28 GJ | 7,778 kWh |

29 GJ | 8,056 kWh |

30 GJ | 8,333 kWh |

31 GJ | 8,611 kWh |

32 GJ | 8,889 kWh |

33 GJ | 9,167 kWh |

34 GJ | 9,444 kWh |

35 GJ | 9,722 kWh |

36 GJ | 10,000 kWh |

37 GJ | 10,278 kWh |

38 GJ | 10,556 kWh |

39 GJ | 10,833 kWh |

40 GJ | 11,111 kWh |

## 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