How to convert kilowatts to kilojoules

How to convert electric power in kilowatts (kW) to energy in kilojoules (kJ).

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

kW to kJ calculation formula

To convert electric power in kilowatts (kW) to energy in kilojoules (kJ), you can use the following formula:

E(kJ) = P(kW) × t(s)

So

kilojoules = kilowatts × seconds

or

kJ = kW×s

Example

where

E is the energy in kilojoules,

P is the power in kilowatts,

t is the time period in seconds.

To use the formula, simply substitute the values for P and t into the equation and solve for E.

For example, if you have a power consumption of 3 kilowatts for a time duration of 4 seconds, you can calculate the energy consumption in kilojoules like this:

E(kJ) = 3kW × 4s = 12kJ

This means that the energy consumption in the time period is 12 kilojoules.

It's important to note that the time period must be in seconds to use this formula. If the time period is in a different unit of time, you'll need to convert it to seconds first. For example, if the time period is in hours, you can convert it to seconds by multiplying the number of hours by 3600 (since there are 3600 seconds in 1 hour).

 

 

How to convert kJ to kW ►

 


See also

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