Watt second conversions

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The watt second conversion selector on this page selects the energy measurement unit to convert to starting from watt seconds (Ws). To make a conversion starting from a unit of energy other than watt second, simply click on the "Reset" button.

What is watt second?

The watt second (or watt-second) is a derived unit of energy equal to one joule (1 Ws = 1 J), the SI derived unit of energy. It is also equal to 0.001 kilojoules (kJ), or 2.7777778x10-4 watt hours (Wh), or 2.7777778x10-7 kilowatt hours (kWh), or 2.7777778x10-10 megawatt hours (MWh) or 2.7777778x10-13 gigawatt hours (GWh).

The watt second is the energy required to produce one watt of power for one second. The watt (W) is a derived unit of power in the SI while the second (s) is an SI unit of time.

The SI is an abbreviation for the International System of Units.




watt seconds

Also known as:

watt-second (plural: watt-seconds)

Watt second conversions: links

A list with conversions from watt seconds to other (metric, imperial, or customary) energy measurement units is given below.