# Calories to Watt-Seconds Converter

Enter the energy in calories below to get the value converted to watt-seconds.

**Results in Watt-Seconds:**

Do you want to convert watt-seconds to calories?

## How to Convert Calories to Watt-Seconds

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

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

watt-seconds = calories × 4.184

The energy in watt-seconds is equal to the energy in calories multiplied by 4.184.

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

### How Many Watt-Seconds Are in a Calorie?

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

1 cal = 4.184 Ws

Calories and watt-seconds 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 Watt-Second?

The watt-second is a measure of electrical energy equal to one watt of power over a one second period. One watt-second is equal to 1/3,600 of a watt-hour or one joule.

Watt-seconds are usually abbreviated as *Ws*, although the formally adopted expression is *W·s*. The abbreviation *W s* is also sometimes used. For example, 1 watt-second can be written as 1 Ws, 1 W·s, or 1 W s.

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-seconds.

## Calorie to Watt-Second Conversion Table

Calories | Watt-seconds |
---|---|

1 cal | 4.184 Ws |

2 cal | 8.368 Ws |

3 cal | 12.55 Ws |

4 cal | 16.74 Ws |

5 cal | 20.92 Ws |

6 cal | 25.1 Ws |

7 cal | 29.29 Ws |

8 cal | 33.47 Ws |

9 cal | 37.66 Ws |

10 cal | 41.84 Ws |

11 cal | 46.02 Ws |

12 cal | 50.21 Ws |

13 cal | 54.39 Ws |

14 cal | 58.58 Ws |

15 cal | 62.76 Ws |

16 cal | 66.94 Ws |

17 cal | 71.13 Ws |

18 cal | 75.31 Ws |

19 cal | 79.5 Ws |

20 cal | 83.68 Ws |

21 cal | 87.86 Ws |

22 cal | 92.05 Ws |

23 cal | 96.23 Ws |

24 cal | 100.42 Ws |

25 cal | 104.6 Ws |

26 cal | 108.78 Ws |

27 cal | 112.97 Ws |

28 cal | 117.15 Ws |

29 cal | 121.34 Ws |

30 cal | 125.52 Ws |

31 cal | 129.7 Ws |

32 cal | 133.89 Ws |

33 cal | 138.07 Ws |

34 cal | 142.26 Ws |

35 cal | 146.44 Ws |

36 cal | 150.62 Ws |

37 cal | 154.81 Ws |

38 cal | 158.99 Ws |

39 cal | 163.18 Ws |

40 cal | 167.36 Ws |

## 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 Calorie & Watt-Second Conversions

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