Light Converters
Luminance Converter
Convert luminance between candelas per square meter (nits), foot-lamberts and stilbs — display brightness and lighting design units. A typical monitor is 250–350 nits.
LUMINANCE CONVERTER — INSTANT RESULT
All supported units — luminance
| Unit | Symbol | To candela/meter² (cd/m²) | From candela/meter² (cd/m²) |
|---|---|---|---|
| Candela/meter² (nit) | cd/m² | 1 cd/m² = 1 cd/m² | 1 cd/m² = 1 cd/m² |
| Kilocandela/meter² | kcd/m² | 1 kcd/m² = 1,000 cd/m² | 1 cd/m² = 0.001 kcd/m² |
| Stilb | sb | 1 sb = 10,000 cd/m² | 1 cd/m² = 0.0001 sb |
| Lambert | L | 1 L = 3,183.0988618 cd/m² | 1 cd/m² = 0.00031415927 L |
| Millilambert | mL | 1 mL = 3.18309886 cd/m² | 1 cd/m² = 0.31415927 mL |
| Foot-lambert | fL | 1 fL = 3.4262591 cd/m² | 1 cd/m² = 0.29186351 fL |
| Apostilb | asb | 1 asb = 0.31830989 cd/m² | 1 cd/m² = 3.14159265 asb |
| Candela/foot² | cd/ft² | 1 cd/ft² = 10.7639104 cd/m² | 1 cd/m² = 0.09290304 cd/ft² |
| Candela/inch² | cd/in² | 1 cd/in² = 1,550.0031 cd/m² | 1 cd/m² = 0.00064516 cd/in² |
Popular luminance conversions
Frequently asked questions
What units does this luminance converter support?
It supports 9 units: Candela/meter² (nit) (cd/m²), Kilocandela/meter² (kcd/m²), Stilb (sb), Lambert (L), Millilambert (mL), Foot-lambert (fL), Apostilb (asb), Candela/foot² (cd/ft²), Candela/inch² (cd/in²).
What is the base unit of luminance?
The SI reference unit is the candela/meter² (cd/m²). Every conversion is computed by converting the input to the base unit, then from the base unit to the target unit, so chained precision is preserved.
Is this converter accurate?
Yes. Conversion factors use exact legal definitions where they exist (for example 1 in = 25.4 mm exactly) and CODATA/ISO constants otherwise. Results are shown to up to 10 significant figures.