How many joules are in a kWh?

What you need:

• conversion formula
• Value in kilowatt hours or
• value in joules

Joules and kilowatt hours (kWh) are units of energy/work

The unit kilowatt hours (kWh) is often used in everyday life in connection with electrical devices. Approximately how high is that energythat is given off by your heater? At the latest when your electricity meter or your heating is read again, you will come into contact with the unit kilowatt hours.

• You will encounter the unit joule or kilojoule in nutritional science, for example. There, the ingredients of various dishes are given in detail and it is also described what energy (calorific value) is in the respective dish.
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• But can you now convert the units into each other - how many joules correspond to a kilowatt hour? The conversion is very simple. The unit joule can also be written as a watt second, where 1 J = 1 Ws.

How many kilowatt hours equal one joule

• You carry out the conversion based on one kilowatt hour. 1 kWh = 3600 kWs = 3600 kJ, i.e. 1 Wh = 3600 J = 3.6 kJ.
• For example, how many joules are 15.5 kWh? Applying the above formula, you get 15.5 kWh = 3600 kJ * 15.5 = 55800 kJ = 55.8 MJ.


Conversion from MWh to kWh - this is how it works

Sometimes the conversion from MWh to kWh is necessary. If you know what the two abbreviations...

• You can also carry out a conversion in the same way if you have given a certain value in joules and are looking for the corresponding value in kilowatt hours.
• It applies e.g. B. 27.3kJ = 27.3 * (1Wh/3.6) = 7.583Wh = 0.007583kWh.
• So you can easily convert any value.

As you can see, the different units are used for different applications in everyday life. For example, nobody would think of converting the value read on the electricity meter into joules.