Watt (W)
The watt is a unit of power, used for light bulbs, electronics power ratings, and audio equipment. Its symbol is W.
W
hp
1 watt equals
| Horsepower | 0.00134102 hp |
| Kilowatts | 0.001 kW |
About the watt
The watt honors James Watt, whose improvements to the steam engine powered the industrial revolution. It was adopted as the SI unit of power in 1889.
In everyday use the watt appears in light bulbs, electronics power ratings, and audio equipment. As a point of reference: a modern LED bulb uses about 9 watts.