Nit is a unit in information theory, also called "nat" or "nepit," used to measure information content based on the natural logarithm (base e), unlike the bit which uses base 2. One nit equals approximately 1.44 bits, since 1 nit=1ln2≈1.44 bit1,\mathrm{nit}=\frac{1}{\ln 2}\approx 1.44,\mathrm{bit}1nit=ln21≈1.44bit.
Common Usage
In display technology, "nit" (often plural "nits") measures luminance or brightness, equivalent to one candela per square meter (cd/m²). Higher nit values indicate brighter screens suitable for outdoor use; for example, over 400-500 nits allows visibility in direct sunlight.
Other Contexts
- In poker, a "nit" describes an extremely tight player who only enters pots with premium hands, typically with a VPIP under 18%.
- The term derives from Latin "nitere" (to shine) for the luminance unit.
