Convert Candelas per Square Foot to Lamberts (cd/ft2 to L)
1 candela per square foot (cd/ft²) = 0.003381582189 lamberts (L). 1 L = 295.7195609 cd/ft². Example: 15 cd/ft² = 15 × 0.003381582189 = 0.05072373283 L.
Also searched as candelas per square foot to L, candelas per square foot in L, candelas per square foot into lamberts, cd/ft2 to L, cd/ft2 in lamberts, cd/ft2 into lambert, candela per square foot to lambert, cd/ft2 to lamberts converter and how many lamberts in a candela per square foot.
1 cd/ft² = 0.003381582189 L
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk candela per square foot to lambert converter to paste a column from Excel.
How to Convert Candela per Square Foot to Lambert
- 1 cd/ft² = 0.003381582189 L
- 1 L = 295.7195609 cd/ft²
- Example: convert 15 cd/ft² to L: 15 cd/ft² = 15 × 0.003381582189 L = 0.05072373283 L
Formula
L = cd/ft² × 0.003381582188903
or L = cd/ft² ÷ 295.7195608853
Derivation from SI units:
- 1 cd/ft² = 1/0.09290304 cd/m² ≈ 10.764 cd/m².
- 1 L = (1/π) cd/cm² ≈ 3183 cd/m².
- 1 cd/ft² = 10.76391041671 cd/m² ÷ 3183.098861838 cd/m² per L = 0.003381582188903 L
Both units are defined exactly, so the factor is exact. Candela per Square Foot definition: candela per square foot; Lambert definition: lambert.
Worked examples
- A reading of 2 cd/ft² converts to 0.006763164378 L.
2 cd/ft² × 0.003381582189 = 0.006763164378 L - A value of 20 cd/ft² is 0.06763164378 L.
20 cd/ft² × 0.003381582189 = 0.06763164378 L
Candela per Square Foot to Lambert conversion table
| Candelas per Square Foot (cd/ft²) | Lamberts (L) |
|---|---|
| 0.1 cd/ft² | 0.0003381582189 L |
| 0.5 cd/ft² | 0.001690791094 L |
| 1 cd/ft² | 0.003381582189 L |
| 2 cd/ft² | 0.006763164378 L |
| 5 cd/ft² | 0.01690791094 L |
| 10 cd/ft² | 0.03381582189 L |
| 20 cd/ft² | 0.06763164378 L |
| 50 cd/ft² | 0.1690791094 L |
| 100 cd/ft² | 0.3381582189 L |
| 1000 cd/ft² | 3.381582189 L |
Where it's used
Candelas per Square Foot are used for US lighting engineering, while lamberts appear in older vision-science literature. 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 lambert | 0.003381582189 L |
| 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 stilb | 0.001076391042 sb |
Frequently asked questions
How many lamberts are in 1 candela per square foot?
1 cd/ft² = 0.003381582189 L.
How do I convert candelas per square foot to lamberts?
Multiply the value in cd/ft² by 0.003381582189, or divide it by 295.7195609. For example, 15 cd/ft² × 0.003381582189 = 0.05072373283 L.
Is the cd/ft² to L 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, "lambert".
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 Lamberts (cd/ft2 to L). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/candelas-per-square-foot-to-lamberts/
IEEE
Scientific Converters, "Convert Candelas per Square Foot to Lamberts (cd/ft2 to L)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/candelas-per-square-foot-to-lamberts/