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Luminance
Luminance is a photometric measure of the density of luminous intensity in a given direction. It describes the amount of light that passes through or is emitted from a particular area, and falls within a given solid angle. The SI unit for luminance is candela per square metre (cd/m2). The CGS unit of luminance is the stilb, which is equal to one candela per square centimetre or 10 kcd/m2.
1 cd/m²
is equal to
1 cd/m²
Candela per square metre (cd/m²)
1
Kilocandela per square metre (kcd/m²)
10-3
Candela per square centimetre (cd/cm²)
10-4
Candela per square foot (cd/ft²)
0.09
-
0.29
-
3.14×10-4
-
1
-
10-4