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 watt-hours without lookup tables or manual math.
This page is focused on converting kilowatt-hours to watt-hours. Type a number into the first field and the result appears immediately in the second field.
Example: 1 kWh = 1000 Wh. Conversion formula: result = value × 3600000 / 3600.
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 watt-hour measures energy consumed or produced by one watt of power over one hour.
History: the watt-hour came from electrical engineering as the energy of one watt of power over one hour.
Enter a value in the Kilowatt-hour field. The converter applies the formula "result = value × 3600000 / 3600" and immediately shows the result in watt-hours.
1 kWh = 1000 Wh.
Yes. Use the swap button or choose the reverse pair from the full conversion list.