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Quick answers.

›What is the difference between Lux and Lumens?

Lux measures illuminance, which is the intensity of light on a surface. Lumens measure luminous flux, which is the total amount of light emitted by a source in all directions.

›How many lux are in one foot-candle?

One foot-candle is approximately equal to 10.764 lux. This represents one lumen per square foot versus one lumen per square metre.

›Is my data processed on a server?

No. All unit conversions happen locally within your browser session using JavaScript. Your input values never leave your device.

›Which units are supported by this converter?

The tool supports lux (lx), foot-candles (fc), phot (ph), and noxious (nx) for low-light applications.