Foot-candles (fc)	Nox (nox)
1 fc	10763.91 nox
2 fc	21527.82 nox
5 fc	53819.55 nox
10 fc	107639.1 nox
25 fc	269097.76 nox
50 fc	538195.52 nox
100 fc	1076391.04 nox
250 fc	2690977.6 nox
500 fc	5381955.21 nox
1000 fc	10763910.42 nox

Convert Foot-candles to Nox

Convert foot-candles to nox (fc to nox) with our instant calculator. 1 fc = 10763.910417 nox. Includes exact formula and reference tables.

How to Convert Foot-candles to Nox (fc to nox)

1 Foot-candle (fc) is equal to 10763.910417 Nox (nox). Multiply the foot-candle value by 10763.91042

Quick Answer 1 fc = 10763.910417 nox

Formula nox = fc × 10763.91042

Inverse Factor 1 nox = 0.000093 fc

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 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).

About Nox (nox): Nox (nox) is a unit in the Illuminance measurement category. It is widely used in night vision & astronomy optics (1 millilux). Relative to the illuminance base unit, 1 nox equals 0.001 Lux (lx).

Need to convert in the opposite direction? Visit our Convert Nox to Foot-candles (nox to fc) calculator (1 nox = 0.000093 fc).

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

Convert 5 Foot-candles to Nox: Applying the formula (nox = fc × 10763.91042): starting with 5 fc, multiply the foot-candle value by 10763.91042 to get 53819.5521 nox.
Convert 10 Foot-candles to Nox: Applying the formula (nox = fc × 10763.91042): starting with 10 fc, multiply the foot-candle value by 10763.91042 to get 107639.1042 nox.
Convert 50 Foot-candles to Nox: Applying the formula (nox = fc × 10763.91042): starting with 50 fc, multiply the foot-candle value by 10763.91042 to get 538195.5208 nox.

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 foot-candles to nox.

How many nox are in 1 foot-candle?

There are 10763.910417 nox (nox) in 1 foot-candle (fc). Conversely, 1 nox equals 0.000093 foot-candles.

How do you convert foot-candles to nox?

To convert foot-candles (fc) to nox (nox), use the formula: nox = fc × 10763.91042. Multiply the foot-candle value by 10763.91042. For example, 10 fc equals 107639.1042 nox.

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

To convert in the reverse direction from nox (nox) to foot-candles (fc), use the inverse formula: fc = nox × 0.00009290304. Multiply the nox value by 0.00009290304 (1 nox = 0.000093 fc).

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

Both foot-candle and nox measure illuminance. 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). Nox (nox) is a unit in the Illuminance measurement category. It is widely used in night vision & astronomy optics (1 millilux). Relative to the illuminance base unit, 1 nox equals 0.001 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).