How to convert kilowatts to joules
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)
joules = 1000 × kilowatts × seconds
J = 1000 × kW×s
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