Online kWh to Joules conversion

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kWh to Joules conversion

kWh to joules conversion calculator

Enter the energy in kWh and press the Convert button:

Result in joules: J

Joules to kWh conversion ►

kWh to Joules

A kilowatt-hour is a measure of electrical energy equal to one kilowatt, or 1,000 watts, of power over a one hour period. Kilowatt-hours are a measure of electrical work performed over a period of time, and are often used as a way of measuring energy usage by electric companies.

Kilowatt-hours are usually abbreviated as kWh, although the formally adopted expression is kW·h. The abbreviation kW h is also sometimes used. For example, 1 kilowatt-hour can be written as 1 kWh, 1 kW·h, or 1 kW h.

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.

The joule is the energy equal to the force on an object of one newton at a distance of one meter. One joule is equal to the heat energy dissipated by the current of one ampere through one ohm of resistance for one second.

One joule is also equal to the energy needed to move an electric charge of one coulomb through a potential difference of one volt. In addition, one joule is also equal to the one watt-second.

The joule is the SI derived unit for energy in the metric system. Joules can be abbreviated as J; for example, 1 joule can be written as 1 J.

How to convert kWh to joules

One kilowatt-hour is equal to 3600000 joules:

1kWh = 3600000J = 3.6⋅106J = 3.6MJ

So the energy in joules E(J)

is equal to 3600000 times the energy in kilowatt-hour E(kWh):

E(J) = 3600000 ⋅ E(kWh)

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