Convert Lamberts to Candelas per Square Inch (L to cd/in2)
1 lambert (L) = 2.053608062 candelas per square inch (cd/in²). 1 cd/in² = 0.4869478352 L. Example: 15 L = 15 × 2.053608062 = 30.80412093 cd/in².
Also searched as lamberts to cd/in2, lamberts in cd/in2, lamberts into candelas per square inch, L to cd/in2, L in candelas per square inch, L into candela per square inch, lambert to candela per square inch, L to candelas per square inch converter and how many candelas per square inch in a lambert.
1 L = 2.053608062 cd/in²
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk lambert to candela per square inch converter to paste a column from Excel.
How to Convert Lambert to Candela per Square Inch
- 1 L = 2.053608062 cd/in²
- 1 cd/in² = 0.4869478352 L
- Example: convert 15 L to cd/in²: 15 L = 15 × 2.053608062 cd/in² = 30.80412093 cd/in²
Formula
cd/in² = L × 2.053608061703
Derivation from SI units:
- 1 L = (1/π) cd/cm² ≈ 3183 cd/m².
- 1 cd/in² = 1/0.00064516 cd/m² ≈ 1550 cd/m².
- 1 L = 3183.098861838 cd/m² ÷ 1550.003100006 cd/m² per cd/in² = 2.053608061703 cd/in²
Both units are defined exactly, so the factor is exact. Lambert definition: lambert; Candela per Square Inch definition: candela per square inch.
Worked examples
- A reading of 2 L converts to 4.107216123 cd/in².
2 L × 2.053608062 = 4.107216123 cd/in² - A value of 20 L is 41.07216123 cd/in².
20 L × 2.053608062 = 41.07216123 cd/in²
Lambert to Candela per Square Inch conversion table
| Lamberts (L) | Candelas per Square Inch (cd/in²) |
|---|---|
| 0.1 L | 0.2053608062 cd/in² |
| 0.5 L | 1.026804031 cd/in² |
| 1 L | 2.053608062 cd/in² |
| 2 L | 4.107216123 cd/in² |
| 5 L | 10.26804031 cd/in² |
| 10 L | 20.53608062 cd/in² |
| 20 L | 41.07216123 cd/in² |
| 50 L | 102.6804031 cd/in² |
| 100 L | 205.3608062 cd/in² |
| 1000 L | 2053.608062 cd/in² |
Where it's used
Lamberts are used for older vision-science literature, while candelas per square inch appear in lamp and LED specifications. 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 inch | 2.053608062 cd/in² |
| lambert to nit | 3183.098862 cd/m² |
| lambert to foot-lambert | 929.0304 fL |
| lambert to apostilb | 10000 asb |
| lambert to candela per square foot | 295.7195609 cd/ft² |
| lambert to stilb | 0.3183098862 sb |
Frequently asked questions
How many candelas per square inch are in 1 lambert?
1 L = 2.053608062 cd/in².
How do I convert lamberts to candelas per square inch?
Multiply the value in L by 2.053608062. For example, 15 L × 2.053608062 = 30.80412093 cd/in².
Is the L to cd/in² 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 inch".
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 Inch (L to cd/in2). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/lamberts-to-candelas-per-square-inch/
IEEE
Scientific Converters, "Convert Lamberts to Candelas per Square Inch (L to cd/in2)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/lamberts-to-candelas-per-square-inch/