# Watt-Hours to Calories Converter

Enter the energy in watt-hours below to convert it to calories.

## Result in Calories:

Do you want to convert calories to watt-hours?

## How to Convert Watt-Hours to Calories

To convert a measurement in watt-hours to a measurement in calories, multiply the energy by the following conversion ratio: 860.42065 calories/watt-hour.

Since one watt-hour is equal to 860.42065 calories, you can use this simple formula to convert:

calories = watt-hours × 860.42065

The energy in calories is equal to the energy in watt-hours multiplied by 860.42065.

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

### How Many Calories Are in a Watt-Hour?

There are **860.42065** calories in a watt-hour, which is why we use this value in the formula above.

1 Wh = 860.42065 cal

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

## What Is a Watt-Hour?

The watt-hour is a measure of electrical energy equal to one watt of power over a one hour period.

Watt-hours are usually abbreviated as *Wh*, although the formally adopted expression is *W·h*. The abbreviation *W h* is also sometimes used. For example, 1 watt-hour can be written as 1 Wh, 1 W·h, or 1 W 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]}

Learn more about watt-hours.

## 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.

## Watt-Hour to Calorie Conversion Table

Watt-hours | Calories |
---|---|

1 Wh | 860.42 cal |

2 Wh | 1,721 cal |

3 Wh | 2,581 cal |

4 Wh | 3,442 cal |

5 Wh | 4,302 cal |

6 Wh | 5,163 cal |

7 Wh | 6,023 cal |

8 Wh | 6,883 cal |

9 Wh | 7,744 cal |

10 Wh | 8,604 cal |

11 Wh | 9,465 cal |

12 Wh | 10,325 cal |

13 Wh | 11,185 cal |

14 Wh | 12,046 cal |

15 Wh | 12,906 cal |

16 Wh | 13,767 cal |

17 Wh | 14,627 cal |

18 Wh | 15,488 cal |

19 Wh | 16,348 cal |

20 Wh | 17,208 cal |

21 Wh | 18,069 cal |

22 Wh | 18,929 cal |

23 Wh | 19,790 cal |

24 Wh | 20,650 cal |

25 Wh | 21,511 cal |

26 Wh | 22,371 cal |

27 Wh | 23,231 cal |

28 Wh | 24,092 cal |

29 Wh | 24,952 cal |

30 Wh | 25,813 cal |

31 Wh | 26,673 cal |

32 Wh | 27,533 cal |

33 Wh | 28,394 cal |

34 Wh | 29,254 cal |

35 Wh | 30,115 cal |

36 Wh | 30,975 cal |

37 Wh | 31,836 cal |

38 Wh | 32,696 cal |

39 Wh | 33,556 cal |

40 Wh | 34,417 cal |

## References

- Bureau International des Poids et Mesures, The International System of Units (SI), 9th edition, 2019, https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf

## More Watt-Hour & Calorie Conversions

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