How to convert kW to kJ

kW to kJ calculation formula

E(kJ) = P(kW) × t(s)

The energy E in kilojoules (kJ) is equal to the power P in kilowatts (kW), multiplied by the time period t in seconds (s).

So,

kJ = kW x s
kilojoule = kilowatt x second

For example:

Power (P) = 2,5kW
Time period = 5 seconds

Energy (E) = 2,5kW x 5s = 12,5kJ

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