What is a Watt (W)?

A watt (W) is the SI unit of power, equal to one joule per second.

Definition

Symbol

W

Category

Power

System

SI

1 {unit} = {value} {otherUnit}

1 Watt = 0.001 Kilowatt (kW)

1 Watt = 0.000001 Megawatt (MW)

1 Watt = 0.00134102 Horsepower (hp)

1 Watt = 3.41214 BTU/hour (BTU/h)

1 Watt = 0.239006 Calorie/second (cal/s)

Common Uses

  • Light bulb ratings
  • Appliance power consumption
  • Audio amplifier output

Watt Conversions

Related Units