How many kilowatt-hours are in 1 kilojoule?

1 kilojoule equals 0.000277778 kWh.

How do I convert kilowatt-hours back to kilojoules?

Use the reverse converter: 1 kilowatt-hour equals 3600 kJ.

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

To convert kilojoules to kilowatt-hours, multiply the value by 0.000277777778.

kWh = kJ × 0.000277777778

Convert 5 kJ to kWh:

5 kJ × 0.000277777778 = 0.00138889 kWh

Kilojoule (kJ): 1,000 joules; used for food energy in Australia, New Zealand and much of Europe.
Kilowatt-hour (kWh): The unit on household electricity bills. Equal to 3.6 megajoules.

How do I convert kilojoules to kilowatt-hours?: To convert kilojoules to kilowatt-hours, multiply the value by 0.000277777778.
How many kilowatt-hours are in 1 kilojoule?: 1 kilojoule equals 0.000277778 kWh.
How many kilowatt-hours are in 10 kilojoules?: 10 kJ equals 0.00277778 kWh.
How do I convert kilowatt-hours back to kilojoules?: Use the reverse converter: 1 kilowatt-hour equals 3600 kJ.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.