Luminance converter
Screen and surface brightness.
Converter
Quick pairs
tap to loadOne candela per square meter in every luminance unit
10 rows| Unit | Symbol | 1 cd/m² equals |
|---|---|---|
| Nit | nt | 1 |
| Candela per square centimeter (stilb) | sb | 0.0001 |
| Candela per square foot | cd/ft² | 0.09290304 |
| Candela per square inch | cd/in² | 0.00064516 |
| Lambert | L | 0.0003141592654 |
| Millilambert | mL* | 0.3141592654 |
| Foot-lambert | fL | 0.291863508 |
| Apostilb | asb | 3.141592654 |
| Blondel | blondel | 3.141592654 |
| Bril | bril | 31,415,926.54 |
How the candela per square meter to foot-lambert conversion works
A typical laptop display runs 250. 400 nits; HDR panels reach ten times that.
Multiply by 0.291863508 to go from candela per square meter to foot-lambert:
fL = cd/m² × 0.291863508
Going the other way, multiply by 3.4262591, which is the same as dividing by 0.291863508.
Questions
How many foot-lambert are in one candela per square meter?
One candela per square meter equals 0.291863508 foot-lambert.
Which units does this luminance converter cover?
11 units in total, all referenced to the candela per square meter. They include candela per square meter, nit, candela per square centimeter (stilb), candela per square foot, candela per square inch, lambert and more. Pick any pair from the two dropdown lists.
How precise are the results?
Every conversion is computed in your browser at double precision from the factors listed on this page, which follow the SI definitions and the exact international agreements for imperial and US customary units. Use the Decimals control to round the display without changing the underlying value.
Does anything I type leave my device?
No. The converter is plain JavaScript running locally, with no server round-trip, and the page keeps working offline once loaded.