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Lux to foot-candle converter

Convert illuminance between lux, kilolux, foot-candles and phots. 1 lux is 1 lumen per square meter and 1 foot-candle is 1 lumen per square foot, so 1 fc ≈ 10.764 lx.

Result

5,381.96lx

1 fc = 10.7639 lx

On the light meter: 500 fc = 5,382 lx

Quick challenge

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How it works

Illuminance is the amount of light falling on a surface. Lux (lumens per square meter) is the SI unit; the foot-candle (lumens per square foot) is still used in the United States. Since a square meter is about 10.764 square feet, multiply foot-candles by 10.764 to get lux.

All units compared

All units compared
UnitSymbolValue in lux
luxlx1 lx
kiloluxklx1,000 lx
foot-candlefc10.76391042 lx
photph10,000 lx

Frequently asked questions

How many lux in a foot-candle?

About 10.764: 1 fc = 1 lm/ft² and 1 m² = 10.7639 ft², so 1 fc = 10.7639 lx.

What is the difference between lux and lumens?

Lumens measure the light a bulb gives off; lux measure the light that reaches a surface. 1,000 lumens spread evenly over 10 m² give 100 lux.

How many lux are in 1 foot-candle?

1 foot-candle = 10.7639 lux. The other way round, 1 lux = 0.09290304 foot-candles.

How many foot-candles are in 1 lux?

1 lux = 0.092903 foot-candles. The other way round, 1 foot-candle = 10.7639 lux.

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