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.

0.001kcd/m²
✓ Exact 1 cd/m² = 0.001 kcd/m²
As a fraction: 1/1000
1 cd/m² = 0.001 kcd/m²

Common luminance conversions

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 →