Nit (unit)

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This article is about the unit of measure. For other uses, see Nit

A nit is a non-SI unit of luminance equal to one candela per square metre (cd/m²). It is often used to quote the brightness of computer displays, which typically have luminances of 200 to 300 nits, and LED displays, which have typical luminances between 1000 nits (indoor) and 5000 nits (outdoor). Plasma Televisions typically have ranges between 2,000-10,000.

The SI unit of luminance is the candela per square metre.

SI photometry units
[[http://encycl.opentopia.com/ edit]]
Quantity	Symbol	SI unit	Abbr.	Notes
Luminous energy	Q_v	lumen second	lm·s	Talbots
Luminous flux	F	lumen (= cd·sr)	lm	also called luminous power
Luminous intensity	I_v	candela (= lumen (unit)>lm/sr)	cd	an SI base unit
Luminance	L_v	candela per square metre	cd/m²	nits
Illuminance	E_v	lux (= lumen (unit)>lm/m²)	lx
Luminous emittance	M_v	lux (= lumen (unit)>lm/m²)	lx	Used for light emitted from a surface
Luminous efficacy		lumen per watt	lm/W	ratio of luminous flux to radiant flux; maximum possible is 683.002

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Nit (unit)

See also