Definition
Power measures the rate at which energy is transferred or work is done.
W
Unit conversion category
Power Converter
Convert power units including watts, kilowatts, megawatts, and horsepower.
Convert power units including watts, kilowatts, megawatts, and horsepower.
Featured Units
Watt
Kilowatt
Megawatt
Horsepower
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Educational Guide
Common Uses
Power conversions are common for motors, engines, appliances, solar systems, and grid capacity.
Industries
Energy, automotive, manufacturing, HVAC, construction, and electronics use power units.
Tips
Distinguish power from energy: watts measure rate, while watt-hours measure accumulated energy.
Frequently Asked Questions
What is the SI unit of power?
The watt is the SI derived unit of power.
How many watts are in one kilowatt?
One kilowatt equals exactly 1,000 watts.
Which horsepower definition is used?
This category uses mechanical horsepower, equal to approximately 745.6998715822702 watts.
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