# Megacalories to Watt-seconds Conversion

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

**Results in Watt-seconds:**

## How to Convert Megacalories to Watt-seconds

To convert a megacalorie measurement to a watt-second measurement, multiply the energy by the conversion ratio.

Since one megacalorie is equal to 4,184,000 watt-seconds, you can use this simple formula to convert:

The energy in watt-seconds is equal to the megacalories multiplied by 4,184,000.

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

### How Many Watt-seconds are in a Megacalorie?

There are **4,184,000** watt-seconds in a megacalorie, which is why we use this value in the formula above.

1 Mcal = 4,184,000 Ws

Megacalories and watt-seconds are both units used to measure energy. Keep reading to learn more about each unit of measure.

## Megacalories

One megacalorie is equal to 1,000,000 calories, which are the heat needed to raise the temperature of one gram of water from 14.5 to 15.5 degrees Celsius. One megacalorie is equal to 4.184 megajoules.

Megacalories can be abbreviated as *Mcal*; for example, 1 megacalorie can be written as 1 Mcal.

## Watt-seconds

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]}

## Megacalorie to Watt-second Conversion Table

Megacalories | Watt-seconds |
---|---|

0.000001 Mcal | 4.184 Ws |

0.000002 Mcal | 8.368 Ws |

0.000003 Mcal | 12.55 Ws |

0.000004 Mcal | 16.74 Ws |

0.000005 Mcal | 20.92 Ws |

0.000006 Mcal | 25.1 Ws |

0.000007 Mcal | 29.29 Ws |

0.000008 Mcal | 33.47 Ws |

0.000009 Mcal | 37.66 Ws |

0.0000001 Mcal | 0.4184 Ws |

0.000001 Mcal | 4.184 Ws |

0.00001 Mcal | 41.84 Ws |

0.0001 Mcal | 418.4 Ws |

0.001 Mcal | 4,184 Ws |

0.01 Mcal | 41,840 Ws |

0.1 Mcal | 418,400 Ws |

1 Mcal | 4,184,000 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