About This Luminance Measurement Converter
Convert luminance units used for displays, illuminated surfaces, projection screens, and optical measurements. The base unit is candela per square meter, also called a nit.
How to use it
Enter the luminance value, select the current unit, and choose the output unit. The result updates instantly and supports both SI and legacy photometric units.
Units covered
Supported units include cd/m², nit, stilb, Lambert, foot-lambert, and apostilb. Useful reference relationships include 1 stilb = 10,000 cd/m² and 1 foot-lambert = 3.426259 cd/m².