Luminance Converter
Convert luminance units including candela/square meter, candela/square centimeter, candela/square foot, candela/square inch, kilocandela/square meter and many more luminance units instantly and accurately.
Popular Luminance Conversions
Quick access to the most commonly used luminance conversions.
About Luminance Units
Free online luminance converter - converts between 19 units of luminance, including candela/square meter, candela/square centimeter, candela/square foot, candela/square inch, etc. Also, explore many other unit converters or learn more about luminance unit conversions. Different unit systems are used worldwide, including the Metric System (SI) and the Imperial / US Customary System.
Metric System (SI)
The metric system is the most widely adopted international measurement standard. The base unit is the candela/square meter.
Imperial System (US)
The imperial system is commonly used in the United States and specialized international industries including aviation and maritime navigation.
Common Luminance Units
Here are some of the most common luminance units and their abbreviations.
| Unit | Symbol | Type | In Candela/square meter |
|---|---|---|---|
| Candela/square meter | — | Metric (base) | 1 candela/square meter |
| Candela/square centimeter | — | Metric | 10000 candela/square meter |
| Candela/square foot | — | Imperial | 10.76391 candela/square meter |
| Candela/square inch | — | Imperial | 1550.0031 candela/square meter |
| Kilocandela/square meter | — | Metric | 1000 candela/square meter |
| Stilb | sb | Standard | 10000 candela/square meter |
| Lumen/sq. meter/steradian | — | Metric | 1 candela/square meter |
| Lumen/sq. cm/steradian | — | Standard | 10000 candela/square meter |
| Lumen/square foot/steradian | — | Imperial | 10.76391 candela/square meter |
| Watt/sq. cm/steradian (at 555 nm) | — | Metric | 6830000 candela/square meter |
Common Conversion Formulas
Here are some useful luminance conversion formulas.
Frequently Asked Questions
Find answers to common questions about luminance conversion.
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