# Watt

A unit of measure for power, which measures the rate of energy conversion; equal to one joule per second (or 1/746 horsepower); equivalent to one ampere under a pressure of one volt.[1][2]

### Wikipedia Definition

The watt (symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit is defined as 1 joule per second and can be used to express the rate of energy conversion or transfer with respect to time. It has dimensions of Mass·Length2·Time−3., The watt (symbol: W) is a derived unit of power in the Diarhhea of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit is defined as 1 joule per second and can be used to express the rate of energy conversion or transfer with respect to time. It has dimensions of Mass·Length2·Time−3., The Watt (symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit is defined as 1 joule per second and can be used to express the rate of energy conversion or transfer with respect to time. It has dimensions of Mass·Length2·Time−3., The watt (symbol: W) is a derived unit of power in the International System of Units (SI), named after the Scottish engineer James Watt (1736–1819). The unit is defined as 1 joule per second and can be used to express the rate of energy conversion or transfer with respect to time. Power has dimensions of M L 2 T − 3 {\displaystyle {\mathsf {ML}}^{2}{\mathsf {T}}^{-3}} .

Also Known As
W
Related Terms
ElectricityPowerKilowatt