Lux (lx)	Foot-candles (fc)
1 lx	0.0929 fc
2 lx	0.1858 fc
5 lx	0.4645 fc
10 lx	0.929 fc
25 lx	2.3226 fc
50 lx	4.6452 fc
100 lx	9.2903 fc
250 lx	23.2258 fc
500 lx	46.4515 fc
1000 lx	92.903 fc

Convert Lux to Foot-candles

Convert lux to foot-candles (lx to fc) with our instant calculator. 1 lx = 0.092903 fc. Includes exact formula and reference tables.

How to Convert Lux to Foot-candles (lx to fc)

1 Lux (lx) is equal to 0.092903 Foot-candles (fc). Multiply the lux value by 0.09290304

Quick Answer 1 lx = 0.092903 fc

Formula fc = lx × 0.09290304

Inverse Factor 1 fc = 10.76391 lx

Unit Definitions & Metrology Context

The SI unit of illuminance is the lux (lx), which equals one lumen per square meter (1 lx = 1 lm/m²). It quantifies the intensity of light falling on a given surface.

About Lux (lx): Lux (lx) is a unit in the Illuminance measurement category. It is widely used in si standard illuminance (1 lumen/m²). The lux (lx) serves as the primary reference base unit for the illuminance domain.

About Foot-candles (fc): Foot-candle (fc) is a unit in the Illuminance measurement category. It is widely used in us architectural & photography lighting (1 lm/ft²). Relative to the illuminance base unit, 1 fc equals 10.76391 Lux (lx).

Need to convert in the opposite direction? Visit our Convert Foot-candles to Lux (fc to lx) calculator (1 fc = 10.76391 lx).

Step-by-Step Worked Examples (lx to fc)

Convert 5 Lux to Foot-candles: Applying the formula (fc = lx × 0.09290304): starting with 5 lx, multiply the lux value by 0.09290304 to get 0.4645 fc.
Convert 10 Lux to Foot-candles: Applying the formula (fc = lx × 0.09290304): starting with 10 lx, multiply the lux value by 0.09290304 to get 0.929 fc.
Convert 50 Lux to Foot-candles: Applying the formula (fc = lx × 0.09290304): starting with 50 lx, multiply the lux value by 0.09290304 to get 4.6452 fc.

Popular Illuminance Conversions

Lux ⇄ Foot-candle

Multiply lux by ~0.092903 to calculate illuminance in foot-candles (or divide lux by 10.7639).

Foot-candle ⇄ Lux

Multiply foot-candles by ~10.7639 to convert to lux (1 fc ≈ 10.764 lx).

Kilolux ⇄ Lux

1 kilolux equals exactly 1,000 lux (typical overcast daylight is 1–10 klx).

Phot ⇄ Lux

1 phot equals exactly 10,000 lux (1 lumen per square centimeter).

Frequently Asked Questions

Verified answers and formulas for converting lux to foot-candles.

How many foot-candles are in 1 lux?

There are 0.092903 foot-candles (fc) in 1 lux (lx). Conversely, 1 foot-candle equals 10.76391 lux.

How do you convert lux to foot-candles?

To convert lux (lx) to foot-candles (fc), use the formula: fc = lx × 0.09290304. Multiply the lux value by 0.09290304. For example, 10 lx equals 0.929 fc.

How do I convert back from foot-candles to lux?

To convert in the reverse direction from foot-candles (fc) to lux (lx), use the inverse formula: lx = fc × 10.76391042. Multiply the foot-candle value by 10.76391042 (1 fc = 10.76391 lx).

What is the difference between lux (lx) and foot-candle (fc)?

Both lux and foot-candle measure illuminance. Lux (lx) is a unit in the Illuminance measurement category. It is widely used in si standard illuminance (1 lumen/m²). The lux (lx) serves as the primary reference base unit for the illuminance domain. Foot-candle (fc) is a unit in the Illuminance measurement category. It is widely used in us architectural & photography lighting (1 lm/ft²). Relative to the illuminance base unit, 1 fc equals 10.76391 Lux (lx).

How do you convert foot-candles (fc) to lux (lx)?

Multiply the foot-candle value by 10.7639. For example, standard office lighting of 50 fc equals approximately 538.2 lux (50 × 10.7639 ≈ 538 lx).