Convert Lamberts to Foot-lamberts
Convert lamberts to foot-lamberts by entering a value below.
How to Convert Lamberts to Foot-lamberts
The lambert and foot-lambert are both units of luminance. 1 lambert equals 929.03040006 foot-lamberts. This means to convert lamberts to foot-lamberts, you multiply by 929.03040006.
Formula
Step-by-Step Example
Convert 5 L to foot-lamberts:
We need to convert lamberts to foot-lamberts
Since 1 L = 929.03040006 fL, multiply by 929.03040006
5 × 929.03040006 = 4645.1520003
5 L = 4645.1520003 fL
Lambert to Foot-lambert Conversion Table
Quick reference table for common lambert to foot-lambert conversions. Click any value for detailed calculation.
| Lamberts (L) | Foot-lamberts (fL) |
|---|---|
| 0.1 L | 92.903040006 fL |
| 0.5 L | 464.51520003 fL |
| 1 L | 929.03040006 fL |
| 2 L | 1858.0608001 fL |
| 5 L | 4645.1520003 fL |
| 10 L | 9290.3040006 fL |
| 25 L | 23225.760001 fL |
| 50 L | 46451.520003 fL |
| 100 L | 92903.040006 fL |
About These Units
Lambert (L)
The lambert (L) equals 10,000/π cd/m² ≈ 3,183 nits. Named after mathematician Johann Lambert. A perfect diffuser with luminous exitance of 1 lumen/cm² has luminance of 1 lambert. Very bright—comparable to a projector screen in direct sunlight.
Foot-lambert (fL)
The foot-lambert (fL) equals 1/π candela per square foot ≈ 3.43 nits. The US cinema projection standard: movie theater screen 12-22 fL, IMAX 22 fL minimum, drive-in 4-8 fL. Also used in flight simulator displays and military cockpit specifications.
Frequently Asked Questions
How do I convert lamberts to foot-lamberts?
To convert lamberts to foot-lamberts, multiply the value by 929.03040006. For example, 10 L = 9290.3040006 fL.
How many foot-lamberts are in 1 lambert?
1 lambert equals 929.03040006 foot-lamberts.
What is the formula for lamberts to foot-lamberts?
The formula is: fL = L × 929.03040006.