How it works
kWh = J ÷ 3600000.
Enter a value in joules to get its equivalent in kilowatt-hours. Use the inverse button to switch conversion direction.
1 J = 0.000000278 kWh
kWh = J ÷ 3600000.
The result expresses the value entered in joules as kilowatt-hours. A kilowatt-hour measures energy, not power. One kWh is the energy used by one kilowatt over one hour.
Last verified:
kWh = J ÷ 3600000.