Luminance converter
Calculate luminance with explicit inputs, validation, and a documented formula.
Luminance converter
Result1
Unitnt
How to use this tool
- Enter the known values.
- Select Calculate to process the inputs.
- Review the result, formula, and calculation steps.
Worked example
Follow this example to see the method in practice.
Formula
result = value × source factor ÷ target factor
Reference table
| Unit | Symbol | Base factor |
|---|---|---|
| Candela per square metre | cd/m² | 1 |
| Nit | nt | 1 |
| Candela per square centimetre | cd/cm² | 10000 |
| Candela per square foot | cd/ft² | 10.763910416709722 |
| Apostilb | asb | 0.3183098861837907 |
| Foot-lambert | fL | 3.4262590996353905 |
| Lambert | L | 3183.098861837907 |
| Stilb | sb | 10000 |
Frequently asked questions
Formula
The formula below shows how the result is calculated.
Important information
Results are estimates for general informational purposes. Check important decisions with an appropriate professional or primary source.