Convert Nits to Foot-lamberts (cd/m2 to fL)
1 nit (cd/m²) = 0.291863508 foot-lamberts (fL). 1 fL = 3.4262591 cd/m². Example: 48 cd/m² = 48 × 0.291863508 = 14.00944838 fL.
Also searched as nits to foot lamberts, cd/m2 to fL and nit to fL.
1 cd/m² = 0.291863508 fL
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk nit to foot-lambert converter to paste a column from Excel.
How to Convert Nit to Foot-lambert
- 1 cd/m² = 0.291863508 fL
- 1 fL = 3.4262591 cd/m²
- Example: convert 48 cd/m² to fL: 48 cd/m² = 48 × 0.291863508 fL = 14.00944838 fL
Formula
fL = cd/m² × 0.2918635079602
or fL = cd/m² ÷ 3.426259099635
Derivation from SI units:
- 1 nit = 1 cd/m².
- 1 fL = (1/π) cd/ft² ≈ 3.426 cd/m².
Both units are defined exactly, so the factor is exact. Nit definition: nit; Foot-lambert definition: foot-lambert.
Worked examples
- A cinema screen at 48 cd/m² is 14.00944838 fL.
48 cd/m² × 0.291863508 = 14.00944838 fL - 100 cd/m² is 29.1863508 fL.
100 cd/m² × 0.291863508 = 29.1863508 fL
Nit to Foot-lambert conversion table
| Nits (cd/m²) | Foot-lamberts (fL) |
|---|---|
| 100 cd/m² | 29.1863508 fL |
| 250 cd/m² | 72.96587699 fL |
| 300 cd/m² | 87.55905239 fL |
| 500 cd/m² | 145.931754 fL |
| 600 cd/m² | 175.1181048 fL |
| 1000 cd/m² | 291.863508 fL |
| 1600 cd/m² | 466.9816127 fL |
| 2000 cd/m² | 583.7270159 fL |
| 4000 cd/m² | 1167.454032 fL |
| 10000 cd/m² | 2918.63508 fL |
Where it's used
Display and surface luminance in nits (cd/m²) is converted to foot-lamberts for cinema and US projection standards. Divide by 3.4263.
Nit to other luminance units
| Conversion | 1 cd/m² equals |
|---|---|
| nit to foot-lambert | 0.291863508 fL |
| nit to apostilb | 3.141592654 asb |
| nit to candela per square foot | 0.09290304 cd/ft² |
| nit to candela per square inch | 0.00064516 cd/in² |
| nit to stilb | 0.0001 sb |
| nit to lambert | 0.0003141592654 L |
Frequently asked questions
How many foot-lamberts is a nit?
1 nit = 0.291863508 fL; the DCI cinema standard of 48 cd/m² is about 14 fL.
How many foot-lamberts are in 1 nit?
1 cd/m² = 0.291863508 fL.
How do I convert nits to foot-lamberts?
Multiply the value in cd/m² by 0.291863508, or divide it by 3.4262591. For example, 48 cd/m² × 0.291863508 = 14.00944838 fL.
Is the cd/m² to fL conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 4 (becquerel, gray, sievert, lux) and Table 2 (candela).
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "footlambert".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Nits to Foot-lamberts (cd/m2 to fL). Retrieved October 25, 2026, from https://scientificconverters.com/luminance/nits-to-foot-lamberts/
IEEE
Scientific Converters, "Convert Nits to Foot-lamberts (cd/m2 to fL)," scientificconverters.com. Accessed: Oct. 25, 2026. [Online]. Available: https://scientificconverters.com/luminance/nits-to-foot-lamberts/