How to convert kilowatts to joules

 

How to convert kilowatts to joules

How to convert electric power in kilowatts (kW) to energy in joules (J).

You can calculate joules from kilowatts and seconds, but you can't convert kilowatts to joules since kilowatt and joule units represent different quantities.

 

Kilowatts to joules calculation formula

The energy E in joules (J) is equal to 1000 times the power P in kilowatts (kW), times the time period t in seconds (s):

E(J) = 1000 × P(kW) × t(s)

So

joules = 1000 × kilowatts × seconds

or

J = 1000 × kW×s

Example

What is the energy consumption of an electrical circuit that has power consumption of 3 kilowatts for time duration of 3 seconds?

E(J) = 1000 × 3kW × 3s = 9000J

 

How to convert joules to kW►

 

See also

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