Convert Foot-lamberts to Lamberts (fL to L)
1 foot-lambert (fL) = 0.001076391042 lamberts (L). 1 L = 929.0304 fL. Example: 15 fL = 15 × 0.001076391042 = 0.01614586563 L.
Also searched as foot-lamberts to L, foot-lamberts in L, foot-lamberts into lamberts, fL to L, fL in lamberts, fL into lambert, foot-lambert to lambert, fL to lamberts converter and how many lamberts in a foot-lambert.
1 fL = 0.001076391042 L
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk foot-lambert to lambert converter to paste a column from Excel.
How to Convert Foot-lambert to Lambert
- 1 fL = 0.001076391042 L
- 1 L = 929.0304 fL
- Example: convert 15 fL to L: 15 fL = 15 × 0.001076391042 L = 0.01614586563 L
Formula
L = fL × 0.001076391041671
or L = fL ÷ 929.0304
Derivation from SI units:
- 1 fL = (1/π) cd/ft² ≈ 3.426 cd/m².
- 1 L = (1/π) cd/cm² ≈ 3183 cd/m².
- 1 fL = 3.426259099635 cd/m² ÷ 3183.098861838 cd/m² per L = 0.001076391041671 L
Both units are defined exactly, so the factor is exact. Foot-lambert definition: foot-lambert; Lambert definition: lambert.
Worked examples
- A reading of 10 fL converts to 0.01076391042 L.
10 fL × 0.001076391042 = 0.01076391042 L - A value of 22 fL is 0.02368060292 L.
22 fL × 0.001076391042 = 0.02368060292 L
Foot-lambert to Lambert conversion table
| Foot-lamberts (fL) | Lamberts (L) |
|---|---|
| 1 fL | 0.001076391042 L |
| 4 fL | 0.004305564167 L |
| 7 fL | 0.007534737292 L |
| 10 fL | 0.01076391042 L |
| 14 fL | 0.01506947458 L |
| 16 fL | 0.01722225667 L |
| 22 fL | 0.02368060292 L |
| 30 fL | 0.03229173125 L |
| 50 fL | 0.05381955208 L |
| 100 fL | 0.1076391042 L |
Where it's used
Foot-lamberts are used for cinema projection standards (DCI 14 fL), while lamberts appear in older vision-science literature. Both measure luminance (brightness of a surface or screen), so the conversion is a fixed factor.
Foot-lambert to other luminance units
| Conversion | 1 fL equals |
|---|---|
| foot-lambert to lambert | 0.001076391042 L |
| foot-lambert to nit | 3.4262591 cd/m² |
| foot-lambert to apostilb | 10.76391042 asb |
| foot-lambert to candela per square foot | 0.3183098862 cd/ft² |
| foot-lambert to candela per square inch | 0.002210485321 cd/in² |
| foot-lambert to stilb | 0.00034262591 sb |
Frequently asked questions
How many lamberts are in 1 foot-lambert?
1 fL = 0.001076391042 L.
How do I convert foot-lamberts to lamberts?
Multiply the value in fL by 0.001076391042, or divide it by 929.0304. For example, 15 fL × 0.001076391042 = 0.01614586563 L.
Is the fL 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, "footlambert".
- 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 Foot-lamberts to Lamberts (fL to L). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/foot-lamberts-to-lamberts/
IEEE
Scientific Converters, "Convert Foot-lamberts to Lamberts (fL to L)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/foot-lamberts-to-lamberts/