Convert Foot-lambert to Candela per Square Foot
Type the number of foot-lamberts that you wish to convert to candelas per square foot.
How to Convert Foot-lamberts to Candelas per Square Foot
The foot-lambert and candela per square foot are both units of luminance. 1 candela per square foot equals 3.1415926537 foot-lamberts. This means to convert foot-lamberts to candelas per square foot, you divide by 3.1415926537.
Formula
Step-by-Step Example
Convert 5 fL to candelas per square foot:
We need to convert foot-lamberts to candelas per square foot
Since 1 cd/ft² = 3.1415926537 fL, divide by 3.1415926537
5 ÷ 3.1415926537 = 1.5915494309
5 fL = 1.5915494309 cd/ft²
Foot-lambert to Candela per Square Foot Conversion Table
Quick reference table for common foot-lambert to candela per square foot conversions. Click any value for detailed calculation.
| Foot-lamberts (fL) | Candelas per Square Foot (cd/ft²) |
|---|---|
| 1 fL | 0.3183098862 cd/ft² |
| 2 fL | 0.6366197723 cd/ft² |
| 5 fL | 1.5915494309 cd/ft² |
| 10 fL | 3.1830988617 cd/ft² |
| 15 fL | 4.7746482926 cd/ft² |
| 20 fL | 6.3661977234 cd/ft² |
| 25 fL | 7.9577471543 cd/ft² |
| 50 fL | 15.915494309 cd/ft² |
| 100 fL | 31.830988617 cd/ft² |
About These Units
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.
Candela per Square Foot (cd/ft²)
Candelas per square foot (cd/ft²) is the imperial luminance unit equal to 10.76 nits. Used occasionally in US architectural lighting. One cd/ft² ≈ 3.14 foot-lamberts. Not commonly used; foot-lamberts preferred in US practice.
Frequently Asked Questions
How do I convert foot-lamberts to candelas per square foot?
To convert foot-lamberts to candelas per square foot, divide the value by 3.1415926537. For example, 10 fL = 3.1830988617 cd/ft².
How many candelas per square foot are in 1 foot-lambert?
1 foot-lambert equals 0.3183098862 candelas per square foot.
What is the formula for foot-lamberts to candelas per square foot?
The formula is: cd/ft² = fL ÷ 3.1415926537.