Convert Foot-lamberts to Millilamberts
Convert Foot-lamberts (fL) to Millilamberts (mL) instantly and accurately.
Conversion Formula
mL = fL × 1.076391042
About Foot-lamberts
The foot-lambert (fL) equals 1/(π×0.09290304) cd/m² ≈ 3.426 cd/m², the luminance of a perfect diffuse surface emitting 1 lumen per square foot. The SMPTE standard for cinema screen luminance is 14 fL (≈48 cd/m²); home projectors are rated 10-35 fL. Still standard in US cinema and theatre engineering. 1 fL = 1/(π×ft²) cd/m².
About Millilamberts
The millilambert (mL) equals 10/π cd/m² ≈ 3.183 cd/m². Historically used in the United States to specify projection screen luminance and oscilloscope phosphor brightness. A projection screen with luminance 1 mL ≈ 3.18 cd/m². Largely superseded by cd/m² and foot-lamberts in modern display standards. 1 mL = 10/π cd/m².
Quick Reference Table
| Foot-lamberts (fL) | Millilamberts (mL) |
|---|---|
| 1 fL | 1.07639 mL |
| 2 fL | 2.15278 mL |
| 5 fL | 5.38196 mL |
| 10 fL | 10.7639 mL |
| 25 fL | 26.9098 mL |
| 50 fL | 53.8196 mL |
| 100 fL | 107.639 mL |