Joule (J)
The joule is the SI unit of energy and connects mechanical work, heat, and electrical energy.
History: the joule is named after James Prescott Joule and is the SI unit of energy.
Quickly convert joules to kilowatt-hours without lookup tables or manual math.
This page is focused on converting joules to kilowatt-hours. Type a number into the first field and the result appears immediately in the second field.
Example: 1 J = 2.7777777778E-7 kWh. Conversion formula: result = value × 1 / 3600000.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
The joule is the SI unit of energy and connects mechanical work, heat, and electrical energy.
History: the joule is named after James Prescott Joule and is the SI unit of energy.
The kilowatt-hour is the main household electricity unit on bills and appliances.
History: the kilowatt-hour became the standard electricity-billing unit for household and industrial energy.
Enter a value in the Joule field. The converter applies the formula "result = value × 1 / 3600000" and immediately shows the result in kilowatt-hours.
1 J = 2.7777777778E-7 kWh.
Yes. Use the swap button or choose the reverse pair from the full conversion list.