Watt (W)

The watt (W) is the SI unit of power equal to one joule per second. Watts measure electrical power consumption (LED bulb: 10W, microwave: 1000W), light bulb brightness, and device power ratings. One kilowatt equals 1,000 watts. Named after inventor James Watt.

Convert From Watts

watts to milliwatts watts to kilowatts Watt to Megawatt Watt to Gigawatt watts to horsepower Watt to Metric Horsepower Watt to Foot-pound per Second watts to BTU/h Watt to BTU per Second Watt to Ton of Refrigeration Watt to Calorie per Second watts to kcal/h

Convert To Watts

milliwatts to watts kilowatts to watts Megawatt to Watt Gigawatt to Watt horsepower to watts Metric Horsepower to Watt Foot-pound per Second to Watt BTU/h to watts BTU per Second to Watt Ton of Refrigeration to Watt Calorie per Second to Watt kcal/h to watts

Conversion Factors

1 W 1e-6 mW

1 W 0.001 kW

1 W 1e-6 MW

1 W 1e-9 GW

1 W 0.0013410221 hp

1 W 0.0013596216 PS

1 W 0.7375621493 ft·lb/s

1 W 3.4121416351 BTU/h

1 W 0.0009478171 BTU/s

1 W 0.0002843451 TR

1 W 0.2390057361 cal/s

1 W 0.8598452279 kcal/h

Related Units

Milliwatt (mW) Kilowatt (kW) Megawatt (MW) Gigawatt (GW) Horsepower (Mechanical) (hp) Metric Horsepower (PS) Foot-pound per Second (ft·lb/s) BTU per Hour (BTU/h) BTU per Second (BTU/s) Ton of Refrigeration (TR) Calorie per Second (cal/s) Kilocalorie per Hour (kcal/h)