About Units

Watt: The watt (W) is a unit of power in the International System of Units (SI), equivalent to one joule per second. It is named after James Watt, an 18th-century Scottish inventor. Watts are commonly used to measure the rate of energy transfer in electrical systems. For example, a typical incandescent light bulb consumes about 60 watts of power.

Kilowatt: The kilowatt (kW) is a unit of power equal to one thousand watts. It is commonly used to express the output power of engines and the power consumption of electric devices. For example, the power consumption of a typical household appliance such as a microwave oven is around 1 kilowatt.