Convert Candela per Square Millimeter to Foot-lambert
Enter the number of candelas per square millimeter that you want to convert to foot-lamberts.
How to Convert Candelas per Square Millimeter to Foot-lamberts
The candela per square millimeter and foot-lambert are both units of luminance. 1 candela per square millimeter equals 291863.50796 foot-lamberts. This means to convert candelas per square millimeter to foot-lamberts, you multiply by 291863.50796.
Formula
Step-by-Step Example
Convert 5 cd/mm² to foot-lamberts:
We need to convert candelas per square millimeter to foot-lamberts
Since 1 cd/mm² = 291863.50796 fL, multiply by 291863.50796
5 × 291863.50796 = 1459317.5398
5 cd/mm² = 1459317.5398 fL
Candela per Square Millimeter to Foot-lambert Conversion Table
Quick reference table for common candela per square millimeter to foot-lambert conversions. Click any value for detailed calculation.
| Candelas per Square Millimeter (cd/mm²) | Foot-lamberts (fL) |
|---|---|
| 0.1 cd/mm² | 29186.350796 fL |
| 0.5 cd/mm² | 145931.75398 fL |
| 1 cd/mm² | 291863.50796 fL |
| 2 cd/mm² | 583727.01593 fL |
| 5 cd/mm² | 1459317.5398 fL |
| 10 cd/mm² | 2918635.0796 fL |
| 25 cd/mm² | 7296587.6991 fL |
| 50 cd/mm² | 14593175.398 fL |
| 100 cd/mm² | 29186350.796 fL |
About These Units
Candela per Square Millimeter (cd/mm²)
A candela per square millimeter (cd/mm²) equals 1,000,000 nits. Measures extremely intense sources: laser output facets, concentrated LED dies, and arc lamp electrodes. A high-power LED die can exceed 100 cd/mm². Used in optical engineering calculations.
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 candelas per square millimeter to foot-lamberts?
To convert candelas per square millimeter to foot-lamberts, multiply the value by 291863.50796. For example, 10 cd/mm² = 2918635.0796 fL.
How many foot-lamberts are in 1 candela per square millimeter?
1 candela per square millimeter equals 291863.50796 foot-lamberts.
What is the formula for candelas per square millimeter to foot-lamberts?
The formula is: fL = cd/mm² × 291863.50796.