# Convert Gigajoules to Calories

Enter the energy in gigajoules below to get the value converted to calories.

**Results in Calories:**

## How to Convert Gigajoules to Calories

To convert a gigajoule measurement to a calorie measurement, multiply the energy by the conversion ratio. One gigajoule is equal to 239,005,736.13767 calories, so use this simple formula to convert:

The energy in calories is equal to the gigajoules multiplied by 239,005,736.13767.

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

Gigajoules and calories 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^{6}. Gigajoules can be abbreviated as *GJ*, for example 1 gigajoule can be written as 1 GJ.

## Calories

One calorie is equal to the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius.

When measuring the energy content in foods, the large calorie, or kilocalorie is used, but it's often still just called a "calorie." When both the calorie and large calorie are used in the same context it is common to refer to the calorie as a "small calorie."

Calories can be abbreviated as *cal*, for example 1 calorie can be written as 1 cal.

## Gigajoule Measurements and Equivalent Calorie Conversions

Gigajoules | Calories |
---|---|

1 GJ | 239,005,736 cal |

2 GJ | 478,011,472 cal |

3 GJ | 717,017,208 cal |

4 GJ | 956,022,945 cal |

5 GJ | 1,195,028,681 cal |

6 GJ | 1,434,034,417 cal |

7 GJ | 1,673,040,153 cal |

8 GJ | 1,912,045,889 cal |

9 GJ | 2,151,051,625 cal |

10 GJ | 2,390,057,361 cal |

11 GJ | 2,629,063,098 cal |

12 GJ | 2,868,068,834 cal |

13 GJ | 3,107,074,570 cal |

14 GJ | 3,346,080,306 cal |

15 GJ | 3,585,086,042 cal |

16 GJ | 3,824,091,778 cal |

17 GJ | 4,063,097,514 cal |

18 GJ | 4,302,103,250 cal |

19 GJ | 4,541,108,987 cal |

20 GJ | 4,780,114,723 cal |

21 GJ | 5,019,120,459 cal |

22 GJ | 5,258,126,195 cal |

23 GJ | 5,497,131,931 cal |

24 GJ | 5,736,137,667 cal |

25 GJ | 5,975,143,403 cal |

26 GJ | 6,214,149,140 cal |

27 GJ | 6,453,154,876 cal |

28 GJ | 6,692,160,612 cal |

29 GJ | 6,931,166,348 cal |

30 GJ | 7,170,172,084 cal |

31 GJ | 7,409,177,820 cal |

32 GJ | 7,648,183,556 cal |

33 GJ | 7,887,189,293 cal |

34 GJ | 8,126,195,029 cal |

35 GJ | 8,365,200,765 cal |

36 GJ | 8,604,206,501 cal |

37 GJ | 8,843,212,237 cal |

38 GJ | 9,082,217,973 cal |

39 GJ | 9,321,223,709 cal |

40 GJ | 9,560,229,446 cal |

## More Gigajoule Energy Conversions

**Joules**

- Convert to Joules
- 1 GJ is equal to 1,000,000,000 joules
- Convert to Kilojoules
- 1 GJ is equal to 1,000,000 kilojoules
- Convert to Megajoules
- 1 GJ is equal to 1,000 megajoules

**Calories**

- Convert to Kilocalories
- 1 GJ is equal to 239,005.7 kilocalories
- Convert to Megacalories
- 1 GJ is equal to 239.005736 megacalories

**Watts x Time**

- Convert to Watt-hours
- 1 GJ is equal to 277,777.8 watt-hours
- Convert to Kilowatt-hours
- 1 GJ is equal to 277.777778 kilowatt-hours
- Convert to Megawatt-hours
- 1 GJ is equal to 0.277778 megawatt-hours
- Convert to Watt-seconds
- 1 GJ is equal to 1,000,000,000 watt-seconds

**Thermal Units**

- Convert to British Thermal Units
- 1 GJ is equal to 947,817.1 british thermal units
- Convert to Million BTU
- 1 GJ is equal to 0.947817 million BTU
- Convert to Therms
- 1 GJ is equal to 9.478171 therms
- Convert to Quads
- 1 GJ is equal to 9.4782E-10 quads

**Electronvolts**

- Convert to Electronvolts
- 1 GJ is equal to 6,241,500,000,000,000,443,161,772,032 electronvolts
- Convert to Kiloelectronvolts
- 1 GJ is equal to 6,241,499,999,999,999,833,276,416 kiloelectronvolts
- Convert to Megaelectronvolts
- 1 GJ is equal to 6,241,499,999,999,999,606,784 megaelectronvolts