The kilowatt-hour is a widely used practical energy unit for electrical consumption.
It became central to utility metering and billing because it connects power and operating time in a convenient way.
Measurement system: Technical and commercial energy unit. SI equivalent: 1 kWh = 3.6 MJ.
Kilowatt-hour facts
- Unit name
- Kilowatt-hour
- Symbol
- kWh
- Category
- Energy and Power
- Measurement system
- Technical and commercial energy unit
- SI equivalent
- 1 kWh = 3.6 MJ
- Common uses
- Electricity bills, battery storage and energy comparisons
Definition of the kilowatt-hour
The kilowatt-hour is a widely used practical energy unit for electrical consumption.
Measurement system and SI relationship
Technical and commercial energy unit
SI equivalent: 1 kWh = 3.6 MJ
History of the kilowatt-hour
It became central to utility metering and billing because it connects power and operating time in a convenient way.
Where is the kilowatt-hour used?
Electricity bills, battery storage and energy comparisons