KiloWatt

watt
Unit system	SI derived unit
Unit of	Power
Symbol	W
Named after	James Watt
1 W in ...	... is equal to ...
SI base units	kg⋅m2⋅s−3
CGS units	7007100000000000000♠1×107 erg s−1

SI multiples for watt (W) Submultiples Multiples Value SI symbol Name Value SI symbol Name 10−1 W dW deciwatt 101 W daW decawatt 10−2 W cW centiwatt 102 W hW hectowatt 10−3 W mW milliwatt 103 W kW kilowatt 10−6 W µW microwatt 106 W MW megawatt 10−9 W nW nanowatt 109 W GW gigawatt 10−12 W pW picowatt 1012 W TW terawatt 10−15 W fW femtowatt 1015 W PW petawatt 10−18 W aW attowatt 1018 W EW exawatt 10−21 W zW zeptowatt 1021 W ZW zettawatt 10−24 W yW yoctowatt 1024 W YW yottawatt Common multiples are in bold face

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 ${\displaystyle {\mathsf {ML}}^{2}{\mathsf {T}}^{-3}}$.

When an object's velocity is held constant at one meter per second against constant opposing force of one newton the rate at which work is done is 1 watt.

In terms of electromagnetism, one watt is the rate at which work is done when one ampere (A) of current flows through an electrical potential difference of one volt (V).

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Wikipedia