// multi-utility computation suite · offline · instant · precise
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unit.luminance Calculator
Converts luminance and related photometric quantities including foot-lambert, nit, stilb, and apostilb. Monitor and projector specs mix these freely depending on product origin.
Inputs
Lux
Reference formula or conversion factor shown for context.
Cd
Reference formula or conversion factor shown for context.
Dist
Separation between two points or total path length. Check that units are consistent throughout the calculation.
Area
Two-dimensional surface extent (m²). For complex shapes, break into simpler sub-shapes and sum.
Results
lux (measured)
Reference formula or conversion factor shown for context.