Photometry
fLtoL
Convert foot-lamberts (fL) to lamberts (L).
Factor1 fL = 0.001076391 L
Converter
fL
Accepts numbers or expressions, e.g. 150 + 14.7
Result
L
Rendered to 6 significant figures.
Formula
Formula
L = fL × 0.001076391
Multiply any value in foot-lamberts by 0.001076391 to obtain the value in lamberts.
Worked example
Convert 100 fL to L.
- 01Start with 100 fL.
- 02Multiply by the conversion factor: 100 × 0.001076391 = 0.107639 L.
Result100 fL = 0.107639 L
Conversion table
| fL | L |
|---|---|
| 1 | 0.0010764 |
| 2 | 0.0021528 |
| 5 | 0.005382 |
| 10 | 0.010764 |
| 20 | 0.021528 |
| 50 | 0.05382 |
| 100 | 0.10764 |
| 200 | 0.21528 |
| 500 | 0.5382 |
| 1000 | 1.0764 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from fL to L?
1 fL equals 0.001076391 L. To convert, multiply the value in foot-lamberts by 0.001076391.
How do I convert 1 fL to L?
1 fL = 0.00107639 L. For any value, multiply by 0.001076391.
How do I convert L back to fL?
Divide by the same factor — or equivalently, multiply by 929.0304. So 1 L = 929.03 fL.
When would I need to convert foot-lambert to lambert?
Luminance conversions between fL and L are used in display engineering, road and traffic-signal design, and photometric measurement of luminous surfaces. cd/m² (nit) is the SI standard; foot-lambert and stilb appear in legacy datasheets and specialist optics work.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).