Not much popular, but the joules to kilowatt hour conversion app can be very useful for students and energy industry workers.
Joules to kWh conversion is easy and not much of a difficult task. One joule value is equal to 2.777778⋅10-7 Kilowatt hour value. So, to convert joules to kwh, you need to multiply any given value by 2.777778⋅10-7.