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Unit converter

Illuminance Converter

Convert between lux, foot-candles, phots, millilux, and kilolux.

Lux to Phots

10 Lux = 0.001 Phots

1 × 10⁻³

0.001(1 × 10⁻³)

About these units

Lux

The lux is the SI unit of illuminance, one lumen per square meter. A well-lit office is around 500 lux; daylight can exceed 10,000 lux.

Phots

The phot is a CGS illuminance unit equal to one lumen per square centimeter, or 10,000 lux. It describes very bright light.

Conversion formula

To convert Lux to Phot, multiply the value by 0.0001 (1 × 10⁻⁴).

Quick reference

LuxPhots
10.0001 (1 × 10⁻⁴)
20.0002 (2 × 10⁻⁴)
50.0005 (5 × 10⁻⁴)
100.001 (1 × 10⁻³)
1000.01

Frequently asked questions

How many Phots are in one Lux?
1 Lux = 0.0001 (1 × 10⁻⁴) Phots.
How many Lux are in one Phot?
1 Phot = 10,000 Lux.

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