Kilojoules to Kilowatt-hours Converter (kJ to kW·h)

Kilojoules

The kilojoule (kJ) is a unit of energy equal to exactly 1,000 joules. It is the standard unit for expressing food energy in most countries outside the United States, where food labels display energy in both kilojoules and kilocalories (kcal). One kilocalorie equals exactly 4.184 kilojoules. In thermodynamics and chemistry, reaction enthalpies and bond energies are commonly tabulated in kilojoules per mole (kJ/mol).

Kilowatt-hours

The kilowatt-hour (kW·h) is a unit of energy equal to exactly 3,600,000 joules (3.6 MJ), defined as the energy consumed by a one-kilowatt device operating for one hour. It is the standard unit on electricity bills worldwide. A typical European household consumes approximately 3,500 kWh per year. One kWh powers a 100-watt bulb for 10 hours, charges an electric vehicle by approximately 5–8 km of driving range, or powers the average laptop for about 10 hours.

Kilojoules (kJ) to Kilowatt-hours (kW·h) - Conversion Table
Kilojoules (kJ)	Kilowatt-hours (kW·h)
0.1 kJ	2.7777777777778E-5 kW·h
1 kJ	0.00027777777777778 kW·h
2 kJ	0.00055555555555556 kW·h
3 kJ	0.00083333333333333 kW·h
5 kJ	0.0013888888888889 kW·h
10 kJ	0.0027777777777778 kW·h
20 kJ	0.0055555555555556 kW·h
30 kJ	0.0083333333333333 kW·h
50 kJ	0.013888888888889 kW·h
100 kJ	0.027777777777778 kW·h
1000 kJ	0.27777777777778 kW·h

Frequently Asked Questions (FAQ)

How many kilowatt-hours are in 1 kilojoules?

1 kilojoules (kJ) is exactly 0.000278 kilowatt-hours (kW·h).

How do I convert kilojoules to kilowatt-hours?

Multiply the value in kilojoules by 0.000278 to get the result in kilowatt-hours. Or use the converter above — type any number and see the result instantly.

Convert Kilojoules (kJ) to other units of Energy

Conversions from Kilojoules
‣ Kilojoules (kJ) to Joules (J)
‣ Kilojoules (kJ) to Kilojoules (kJ)
‣ Kilojoules (kJ) to Megajoules (MJ)
‣ Kilojoules (kJ) to Calories (cal)
‣ Kilojoules (kJ) to Kilocalories (kcal)
‣ Kilojoules (kJ) to Watt-hours (W·h)
‣ Kilojoules (kJ) to Kilowatt-hours (kW·h)
‣ Kilojoules (kJ) to British thermal units (BTU)
‣ Kilojoules (kJ) to Electronvolts (eV)
‣ Kilojoules (kJ) to Ergs (erg)

Conversions to Kilojoules
‣ Joules (J) to Kilojoules (kJ)
‣ Kilojoules (kJ) to Kilojoules (kJ)
‣ Megajoules (MJ) to Kilojoules (kJ)
‣ Calories (cal) to Kilojoules (kJ)
‣ Kilocalories (kcal) to Kilojoules (kJ)
‣ Watt-hours (W·h) to Kilojoules (kJ)
‣ Kilowatt-hours (kW·h) to Kilojoules (kJ)
‣ British thermal units (BTU) to Kilojoules (kJ)
‣ Electronvolts (eV) to Kilojoules (kJ)
‣ Ergs (erg) to Kilojoules (kJ)