Convert Candelas per Square Foot to Stilbs (cd/ft2 to sb)
1 candela per square foot (cd/ft²) = 0.001076391042 stilbs (sb). 1 sb = 929.0304 cd/ft². Example: 15 cd/ft² = 15 × 0.001076391042 = 0.01614586563 sb.
Also searched as candelas per square foot to sb, candelas per square foot in sb, candelas per square foot into stilbs, cd/ft2 to sb, cd/ft2 in stilbs, cd/ft2 into stilb, candela per square foot to stilb, cd/ft2 to stilbs converter and how many stilbs in a candela per square foot.
1 cd/ft² = 0.001076391042 sb
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk candela per square foot to stilb converter to paste a column from Excel.
How to Convert Candela per Square Foot to Stilb
- 1 cd/ft² = 0.001076391042 sb
- 1 sb = 929.0304 cd/ft²
- Example: convert 15 cd/ft² to sb: 15 cd/ft² = 15 × 0.001076391042 sb = 0.01614586563 sb
Formula
sb = cd/ft² × 0.001076391041671
or sb = cd/ft² ÷ 929.0304
Derivation from SI units:
- 1 cd/ft² = 1/0.09290304 cd/m² ≈ 10.764 cd/m².
- 1 sb = 1 cd/cm² = 10⁴ cd/m².
- 1 cd/ft² = 10.76391041671 cd/m² ÷ 10000 cd/m² per sb = 0.001076391041671 sb
Both units are defined exactly, so the factor is exact. Candela per Square Foot definition: candela per square foot; Stilb definition: stilb.
Worked examples
- A reading of 2 cd/ft² converts to 0.002152782083 sb.
2 cd/ft² × 0.001076391042 = 0.002152782083 sb - A value of 20 cd/ft² is 0.02152782083 sb.
20 cd/ft² × 0.001076391042 = 0.02152782083 sb
Candela per Square Foot to Stilb conversion table
| Candelas per Square Foot (cd/ft²) | Stilbs (sb) |
|---|---|
| 0.1 cd/ft² | 0.0001076391042 sb |
| 0.5 cd/ft² | 0.0005381955208 sb |
| 1 cd/ft² | 0.001076391042 sb |
| 2 cd/ft² | 0.002152782083 sb |
| 5 cd/ft² | 0.005381955208 sb |
| 10 cd/ft² | 0.01076391042 sb |
| 20 cd/ft² | 0.02152782083 sb |
| 50 cd/ft² | 0.05381955208 sb |
| 100 cd/ft² | 0.1076391042 sb |
| 1000 cd/ft² | 1.076391042 sb |
Where it's used
Candelas per Square Foot are used for US lighting engineering, while stilbs appear in older optics and lamp data. Both measure luminance (brightness of a surface or screen), so the conversion is a fixed factor.
Candela per Square Foot to other luminance units
| Conversion | 1 cd/ft² equals |
|---|---|
| candela per square foot to stilb | 0.001076391042 sb |
| candela per square foot to nit | 10.76391042 cd/m² |
| candela per square foot to foot-lambert | 3.141592654 fL |
| candela per square foot to apostilb | 33.81582189 asb |
| candela per square foot to candela per square inch | 0.006944444444 cd/in² |
| candela per square foot to lambert | 0.003381582189 L |
Frequently asked questions
How many stilbs are in 1 candela per square foot?
1 cd/ft² = 0.001076391042 sb.
How do I convert candelas per square foot to stilbs?
Multiply the value in cd/ft² by 0.001076391042, or divide it by 929.0304. For example, 15 cd/ft² × 0.001076391042 = 0.01614586563 sb.
Is the cd/ft² to sb conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
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, "candela per square foot".
- 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). Convert Candelas per Square Foot to Stilbs (cd/ft2 to sb). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/candelas-per-square-foot-to-stilbs/
IEEE
Scientific Converters, "Convert Candelas per Square Foot to Stilbs (cd/ft2 to sb)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/candelas-per-square-foot-to-stilbs/