Converter category
Luminance Converter
Convert between cd/m², nit, stilb, lambert for luminance measurements.
Universal Luminance Converter
About luminance conversions
Luminance conversions are used in display technology, optics, photography, and lighting design. Our luminance converter covers the SI unit nit (candela per square meter), the CGS unit stilb, and the historical units lambert and millilambert. Whether you are specifying screen brightness, analyzing light sources, or comparing photometric units, this converter provides accurate luminance conversions.
Most popular luminance conversions
Available units
Popular luminance conversions (12 total)
Unit definitions
Nit (nt)
SI luminance unit - candela per square meter.
Origin: Common display brightness unit.
Current use: Display screens, Monitors, TV brightness
Stilb (sb)
1 stilb = 10,000 cd/m².
Origin: CGS system unit.
Current use: Photometry, Historical use, Optics
Lambert (L)
1 L = 10000/π ≈ 3183.1 cd/m².
Origin: Named after Johann Heinrich Lambert.
Current use: Photography, Optics, Display technology
Millilambert (mL)
1 mL = 10/π ≈ 3.1831 cd/m².
Origin: CGS system subdivision.
Current use: Low-light measurements, Display screens, Optics
Common uses for luminance conversions
Luminance conversions are used for display specifications, monitor calibration, photography, lighting design, and optical research.
Frequently asked questions about luminance
What is the SI unit of luminance?+
The SI unit of luminance is the nit, equal to one candela per square meter.
What is luminance?+
Luminance measures the amount of light emitted or reflected per unit area in a given direction. It describes how bright a surface appears.
Which luminance units does this converter support?+
It supports nits, stilbs, lamberts, and millilamberts.