วัตต์

Also known as watts

The watt (symbol: 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⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named in honor of James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776, which became fundamental for the Industrial Revolution.

AI overview

A watt is the standard unit used to measure power—the rate at which energy is being used or transferred—and is equal to one joule of energy per second. It matters because it's the universal way we quantify how much energy devices consume or produce, from light bulbs to power plants, making it essential for understanding and managing energy use.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Unit.name: watt
Unit.image: Alimentation 420 W.jpg
Unit.caption: A 420-watt power supply
Unit.standard: SI
Unit.quantity: power
Unit.symbol: W
Unit.namedafter: James Watt
Unit.units1: SI base units
Unit.inunits1: 1 kg⋅m2⋅s−3
Unit.units2: CGS units
Unit.units3: English Engineering Units
Unit.inunits3: =

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Wikidata facts

Instance of: SI derived unit
Named after: James Watt
Based on: second

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derived from base unit: metre
measured physical quantity: electric power
unit symbol: W
conversion to SI unit: 1
Wikidata SPARQL query equivalent: wd:Q25236 p:P2370/psn:P2370 [wikibase:quantityAmount ?source; wikibase:quantityUnit ?base]. ?item p:P2370/psn:P2370 [wikibase:quantityAmount ?target; wikibase:quantityUnit ?base]. BIND(?source / ?target as ?value)
different from: W
on focus list of Wikimedia project: Wikipedia:Vital articles/Level/4
Commons category: Watt
maintained by WikiProject: WikiProject Mathematics
NCI Thesaurus ID: C42549

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