Stilb (sb)
The stilb is the CGS unit of luminance, one candela per square centimetre (10,000 nits).
Symbol: sb
Quantity: luminance (brightness of a surface or screen)
SI relation: 1 sb = 10000 cd/m² (exact)
Derivation: 1 sb = 1 cd/cm² = 10⁴ cd/m².
Exact: yes, by definition
Typical uses
- Older optics and lamp data
Convert stilbs to other units
| Conversion | 1 sb equals | Reverse |
|---|---|---|
| stilb to nit | 10000 cd/m² | nit to stilb |
| stilb to foot-lambert | 2918.63508 fL | foot-lambert to stilb |
| stilb to apostilb | 31415.92654 asb | apostilb to stilb |
| stilb to candela per square foot | 929.0304 cd/ft² | candela per square foot to stilb |
| stilb to candela per square inch | 6.4516 cd/in² | candela per square inch to stilb |
| stilb to lambert | 3.141592654 L | lambert to stilb |
Open the Luminance Converter (Nits, cd/m²) to convert any value between all units.
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "stilb".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Stilb (sb). Retrieved October 25, 2026, from https://scientificconverters.com/units/stilb/
IEEE
Scientific Converters, "Stilb (sb)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/units/stilb/