Kilowatt-hour (kWh)
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.
Quickly convert kilowatt-hours to joules without lookup tables or manual math.
This page is focused on converting kilowatt-hours to joules. Type a number into the first field and the result appears immediately in the second field.
Example: 1 kWh = 3600000 J. Conversion formula: result = value × 3600000 / 1.
Use this converter for everyday calculations, study notes, engineering checks, and quick value verification without installing a separate app.
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.
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.
Enter a value in the Kilowatt-hour field. The converter applies the formula "result = value × 3600000 / 1" and immediately shows the result in joules.
1 kWh = 3600000 J.
Yes. Use the swap button or choose the reverse pair from the full conversion list.