Luminance Converter — 3 Units, Free & Instant

Convert between Luminance units. Choose from 3 different units including Candelas per Square Meter (Nits), Foot-lamberts, Stilbs.

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cd/m² (nit) to fL fL to cd/m² (nit) sb to cd/m² (nit)

All Units

From	Candelas per Square Meter (Nits) (cd/m² (nit))
Candelas per Square Meter (Nits) (cd/m² (nit))	1
Foot-lamberts (fL)	3.4262591
Stilbs (sb)	10000

Nits, cd/m² and foot-lamberts

Luminance is emitted brightness — the spec-sheet "nits" of phones and TVs, formally candela per square metre. Cinema projection uses foot-lamberts (1 fL ≈ 3.43 cd/m²; SMPTE recommends ~14 fL on screen). A phone peaks at 1,000–2,000 nits; SDR TV reference is 100.