# Watt-seconds to Watt-hours Conversion

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

**Results in Watt-hours:**

## How to Convert Watt-seconds to Watt-hours

To convert a watt-second measurement to a watt-hour measurement, divide the energy by the conversion ratio. One watt-hour is equal to 3,600 watt-seconds, so use this simple formula to convert:

The energy in watt-hours is equal to the watt-seconds divided by 3,600.

**For example,**here's how to convert 5,000 watt-seconds to watt-hours using the formula above.

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

## 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]}

## Watt-hours

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.

## Watt-second to Watt-hour Conversion Table

Watt-seconds | Watt-hours |
---|---|

1 Ws | 0.000278 Wh |

2 Ws | 0.000556 Wh |

3 Ws | 0.000833 Wh |

4 Ws | 0.001111 Wh |

5 Ws | 0.001389 Wh |

6 Ws | 0.001667 Wh |

7 Ws | 0.001944 Wh |

8 Ws | 0.002222 Wh |

9 Ws | 0.0025 Wh |

10 Ws | 0.002778 Wh |

20 Ws | 0.005556 Wh |

30 Ws | 0.008333 Wh |

40 Ws | 0.011111 Wh |

50 Ws | 0.013889 Wh |

60 Ws | 0.016667 Wh |

70 Ws | 0.019444 Wh |

80 Ws | 0.022222 Wh |

90 Ws | 0.025 Wh |

100 Ws | 0.027778 Wh |

200 Ws | 0.055556 Wh |

300 Ws | 0.083333 Wh |

400 Ws | 0.111111 Wh |

500 Ws | 0.138889 Wh |

600 Ws | 0.166667 Wh |

700 Ws | 0.194444 Wh |

800 Ws | 0.222222 Wh |

900 Ws | 0.25 Wh |

1,000 Ws | 0.277778 Wh |

2,000 Ws | 0.555556 Wh |

3,000 Ws | 0.833333 Wh |

4,000 Ws | 1.1111 Wh |

5,000 Ws | 1.3889 Wh |

6,000 Ws | 1.6667 Wh |

7,000 Ws | 1.9444 Wh |

8,000 Ws | 2.2222 Wh |

9,000 Ws | 2.5 Wh |

10,000 Ws | 2.7778 Wh |

## References

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