Concept information
Preferred term
Wwatt
Definition
- The SI unit of power. Power is the rate at which work is done, or (equivalently) the rate at which energy is expended. One watt is equal to a power rate of one joule of work per second of time. This unit is used both in mechanics and in electricity, so it links the mechanical and electrical units to one another. In mechanical terms, one watt equals about 0.001 341 02 horsepower (hp) or 0.737 562 foot-pound per second (lbf/s). In electrical terms, one watt is the power produced by a current of one ampere flowing through an electric potential of one volt. The name of the unit honors James Watt (1736-1819), the British engineer whose improvements to the steam engine are often credited with igniting the Industrial Revolution.
Broader concept
Narrower concepts
- bar.m3/s Bar Cubic Metre per Second
- bar.L.s-1 Bar Litre per Second
- K42 Boiler Horsepower
- 2I BTU per Hour
- J45 BTU per Second
- A63 Erg per Second
- EJ/s exajoule per second
- EW exawatt
- K15 Foot Pound Force per Hour
- K16 Foot Pound Force per Minute
- A74 Foot Pound Force per Second
- P16 Gigajoule per Hour
- GJ.s-1 gigajoule per second
- A90 Gigawatt
- F94 Hectopascal Cubic Metre per Second
- F93 Hectopascal Litre per Second
- K43 Horsepower
- HP{brake} Horsepower (brake)
- HP{electric} Horsepower (electric)
- HJ Horsepower (metric)
- P17 joule per day
- J.h-1 Joule per Hour
- P15 joule per minute
- P14 Joule per Second
- k[Btu_IT]/h Kilo British Thermal Unit (International Definition) per Hour
- K54 Kilocalorie per Minute
- K55 Kilocalorie per Second
- B39 Kilogram_force Metre per Second
- P21 kilojoule per day
- P20 kilojoule per hour
- P19 kilojoule per minute
- P18 kilojoule per second
- KWT Kilowatt
- M[Btu_IT]/h Mega British Thermal Unit (International Definition) per Hour
- MJ.h-1 Megajoule per Hour
- D78 Megajoule per Second
- F98 Megapascal Cubic Metre per Second
- MPa.L.s-1 Megapascal Litre per Second
- MAW MegaW
- uJ.s-1 microjoule per second
- D80 Microwatt
- F96 Millibar Cubic Metre per Second
- mbar.L.s-1 Millibar Litre per Second
- mJ/s millijoule per second
- C31 MilliW
- nJ/s nanojoule per second
- C49 Nanowatt
- G01 Pascal Cubic Metre per Second
- F99 Pascal Litre per Second
- PJ/s petajoule per second
- PW petawatt
- N12 Pferdestaerke
- pJ/s picojoule per second
- C75 Picowatt
- planckpower Planck Power
- K87 Psi Cubic Inch per Second
- K89 PSI Cubic Metre per Second
- K90 Psi Cubic Yard per Second
- K88 Psi Litre per Second
- TJ/s terajoule per second
- D31 Terawatt
- TWh/a Terawatt Hour per Year
- [thm{US}]/h Therm US per Hour
- TOR Ton of Refrigeration
Notation
- 0112/2///62720#UAA306
- W
- WTT
In other languages
URI
https://vocab.sentier.dev/units/unit/W
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