10 units · base unit cd/m² · J L⁻²
Luminance converter
Display brightness is quoted in nits, cinema screens in foot-lamberts. One foot-lambert is 3.426 nits.
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Ranges, ± tolerances, feet/inches and clock durations work in the value field.
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Show this value in all 10 luminance units
- Candela per square meters cd/m² 1
- Kilocandela per square meters kcd/m² 0.001
- Candela per square centimeters cd/cm² 0.0001
- Stilbs sb 0.0001
- Candela per square inchs cd/in² 0.000 645 16
- Candela per square foots cd/ft² 0.092 903 04
- Lamberts L 0.000 314 159 265 359
- Foot-lamberts fL 0.291 863 507 96
- Apostilbs asb 3.141 592 653 59
- Millilamberts mL 0.314 159 265 359
Every row is Candela per square meter (cd/m²) converted through the candela per square meter, in exact rational arithmetic.
Common luminance conversions
- cd/m² → kcd/m²
- cd/m² → cd/cm²
- cd/m² → cd/in²
- cd/m² → L
- cd/m² → fL
- kcd/m² → cd/m²
- kcd/m² → cd/cm²
- kcd/m² → cd/in²
- kcd/m² → L
- kcd/m² → fL
- cd/cm² → cd/m²
- cd/cm² → kcd/m²
- cd/cm² → cd/in²
- cd/cm² → L
- cd/cm² → fL
- cd/in² → cd/m²
- cd/in² → kcd/m²
- cd/in² → cd/cm²
- cd/in² → L
- cd/in² → fL
- L → cd/m²
- L → kcd/m²
- L → cd/cm²
- L → cd/in²
- L → fL
- fL → cd/m²
- fL → kcd/m²
- fL → cd/cm²
- fL → cd/in²
- fL → L
All luminance units
Each unit expressed in candela per square meters (cd/m²), the unit everything in this category converts through.
| Unit | Symbol | System | Value in cd/m² |
|---|---|---|---|
| Candela per square meter | cd/m² | SI | 1 |
| Kilocandela per square meter | kcd/m² | SI | 1000 |
| Candela per square centimeter | cd/cm² | cgs | 10000 |
| Stilb | sb | cgs | 10000 |
| Candela per square inch | cd/in² | imperial | 1550.00310001 |
| Candela per square foot | cd/ft² | imperial | 10.7639104167 |
| Lambert | L | cgs | 3183.09886184 |
| Foot-lambert | fL | us | 3.42625909964 |
| Apostilb | asb | other | 0.318309886184 |
| Millilambert | mL | cgs | 3.18309886184 |
About luminance units
Convert nits, cd/m², foot-lamberts, stilb and lambert.
Display brightness is quoted in nits, cinema screens in foot-lamberts. One foot-lambert is 3.426 nits.
Dimensional formula: J L⁻². Every conversion on this page goes through the candela per square meter, using exact fractions rather than decimal approximations. Read how that works →