Convert Lamberts to Candelas per Square Foot (L to cd/ft2)
1 lambert (L) = 295.7195609 candelas per square foot (cd/ft²). 1 cd/ft² = 0.003381582189 L. Example: 15 L = 15 × 295.7195609 = 4435.793413 cd/ft².
Also searched as lamberts to cd/ft2, lamberts in cd/ft2, lamberts into candelas per square foot, L to cd/ft2, L in candelas per square foot, L into candela per square foot, lambert to candela per square foot, L to candelas per square foot converter and how many candelas per square foot in a lambert.
1 L = 295.7195609 cd/ft²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk lambert to candela per square foot converter to paste a column from Excel.
How to Convert Lambert to Candela per Square Foot
- 1 L = 295.7195609 cd/ft²
- 1 cd/ft² = 0.003381582189 L
- Example: convert 15 L to cd/ft²: 15 L = 15 × 295.7195609 cd/ft² = 4435.793413 cd/ft²
Formula
cd/ft² = L × 295.7195608853
Derivation from SI units:
- 1 L = (1/π) cd/cm² ≈ 3183 cd/m².
- 1 cd/ft² = 1/0.09290304 cd/m² ≈ 10.764 cd/m².
- 1 L = 3183.098861838 cd/m² ÷ 10.76391041671 cd/m² per cd/ft² = 295.7195608853 cd/ft²
Both units are defined exactly, so the factor is exact. Lambert definition: lambert; Candela per Square Foot definition: candela per square foot.
Worked examples
- A reading of 2 L converts to 591.4391218 cd/ft².
2 L × 295.7195609 = 591.4391218 cd/ft² - A value of 20 L is 5914.391218 cd/ft².
20 L × 295.7195609 = 5914.391218 cd/ft²
Lambert to Candela per Square Foot conversion table
| Lamberts (L) | Candelas per Square Foot (cd/ft²) |
|---|---|
| 0.1 L | 29.57195609 cd/ft² |
| 0.5 L | 147.8597804 cd/ft² |
| 1 L | 295.7195609 cd/ft² |
| 2 L | 591.4391218 cd/ft² |
| 5 L | 1478.597804 cd/ft² |
| 10 L | 2957.195609 cd/ft² |
| 20 L | 5914.391218 cd/ft² |
| 50 L | 14785.97804 cd/ft² |
| 100 L | 29571.95609 cd/ft² |
| 1000 L | 295719.5609 cd/ft² |
Where it's used
Lamberts are used for older vision-science literature, while candelas per square foot appear in US lighting engineering. Both measure luminance (brightness of a surface or screen), so the conversion is a fixed factor.
Lambert to other luminance units
| Conversion | 1 L equals |
|---|---|
| lambert to candela per square foot | 295.7195609 cd/ft² |
| lambert to nit | 3183.098862 cd/m² |
| lambert to foot-lambert | 929.0304 fL |
| lambert to apostilb | 10000 asb |
| lambert to candela per square inch | 2.053608062 cd/in² |
| lambert to stilb | 0.3183098862 sb |
Frequently asked questions
How many candelas per square foot are in 1 lambert?
1 L = 295.7195609 cd/ft².
How do I convert lamberts to candelas per square foot?
Multiply the value in L by 295.7195609. For example, 15 L × 295.7195609 = 4435.793413 cd/ft².
Is the L to cd/ft² 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, "lambert".
- 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".
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 Lamberts to Candelas per Square Foot (L to cd/ft2). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/lamberts-to-candelas-per-square-foot/
IEEE
Scientific Converters, "Convert Lamberts to Candelas per Square Foot (L to cd/ft2)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/lamberts-to-candelas-per-square-foot/