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The watt (W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m 2 ⋅s −3. It is named after James Watt, an 18th-century Scottish inventor and engineer who improved the steam engine.
Watt is a unit of power in the International System of Units (SI) that measures the rate of energy transfer per second. Learn how watt is related to joule, ampere, volt, and horsepower, and see examples of watt in electrical devices and communication systems.
In the International System of Units (SI), the unit of power is the watt (W), which is equal to one joule per second. Other common and traditional measures are horsepower (hp), comparing to the power of a horse; one mechanical horsepower equals about 745.7 watts.
Watt is the unit of electric power (symbol: W) named after James Watt, the inventor of the steam engine. Learn how to convert watts to other units, such as kilowatts, milliwatts, dBm, dBW, and see examples of power consumption of electrical components.
A watt is a unit of power that measures the rate of energy transfer in electrical terms. Learn how to calculate watts, the different units of wattage, and the formula for power in electrical circuits.
Learn how to calculate watts, volts, amps, and ohms using Watt's and Ohm's laws. Use the watt calculator to convert between different electrical units and find the power, voltage, resistance, and current of a circuit.
Learn about electric power, the rate of transfer of electrical energy within a circuit, and its SI unit watt. Find out how to calculate power in different types of circuits, such as resistive, inductive and capacitive, and how to use the power triangle.