# Calories to Joules Converter

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

**Results in Joules:**

Do you want to convert joules to calories?

## How to Convert Calories to Joules

To convert a measurement in calories to a measurement in joules, multiply the energy by the following conversion ratio: 4.184 joules/calorie.

Since one calorie is equal to 4.184 joules, you can use this simple formula to convert:

The energy in joules is equal to the energy in calories multiplied by 4.184.

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

### How Many Joules Are in a Calorie?

There are **4.184** joules in a calorie, which is why we use this value in the formula above.

1 cal = 4.184 J

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

## What is a Calorie?

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.

Learn more about calories.

## What is a Joule?

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.

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.

Learn more about joules.

## Calorie to Joule Conversion Table

Calories | Joules |
---|---|

1 cal | 4.184 J |

2 cal | 8.368 J |

3 cal | 12.55 J |

4 cal | 16.74 J |

5 cal | 20.92 J |

6 cal | 25.1 J |

7 cal | 29.29 J |

8 cal | 33.47 J |

9 cal | 37.66 J |

10 cal | 41.84 J |

11 cal | 46.02 J |

12 cal | 50.21 J |

13 cal | 54.39 J |

14 cal | 58.58 J |

15 cal | 62.76 J |

16 cal | 66.94 J |

17 cal | 71.13 J |

18 cal | 75.31 J |

19 cal | 79.5 J |

20 cal | 83.68 J |

21 cal | 87.86 J |

22 cal | 92.05 J |

23 cal | 96.23 J |

24 cal | 100.42 J |

25 cal | 104.6 J |

26 cal | 108.78 J |

27 cal | 112.97 J |

28 cal | 117.15 J |

29 cal | 121.34 J |

30 cal | 125.52 J |

31 cal | 129.7 J |

32 cal | 133.89 J |

33 cal | 138.07 J |

34 cal | 142.26 J |

35 cal | 146.44 J |

36 cal | 150.62 J |

37 cal | 154.81 J |

38 cal | 158.99 J |

39 cal | 163.18 J |

40 cal | 167.36 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 Calorie & Joule Conversions

- calories to kilojoules
- calories to megajoules
- calories to gigajoules
- calories to kilocalories
- calories to megacalories
- calories to watt-hours
- calories to kilowatt-hours
- calories to megawatt-hours
- calories to watt-seconds
- calories to british thermal units
- calories to million BTU
- calories to therms
- calories to quads
- calories to electronvolts
- calories to kiloelectronvolts
- calories to megaelectronvolts
- kilojoules to joules
- megajoules to joules
- gigajoules to joules
- kilocalories to joules
- megacalories to joules
- watt-hours to joules
- kilowatt-hours to joules
- megawatt-hours to joules
- watt-seconds to joules
- british thermal units to joules
- million BTU to joules
- therms to joules
- quads to joules
- electronvolts to joules
- kiloelectronvolts to joules
- megaelectronvolts to joules