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How to use Illuminance Converter

Enter a value and pick lux, foot-candles, or phot, and the tool converts it to the other light-intensity units instantly.

Frequently asked questions

How many lux in a foot-candle?

1 foot-candle = 10.7639 lux.

What lux level is typical office lighting?

Office lighting is typically 300–500 lux; direct sunlight can exceed 100,000 lux.

What is a phot?

A phot is the CGS unit of illuminance, equal to 10,000 lux.

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