9 Foot-Candle to Lux
Quick answer
9 Foot-Candle (fc) equals
96.87519 lx
To convert 9 Foot-Candles to Lux, multiply by 10.76391. Therefore, 9 Foot-Candle (fc) equals 96.87519 Lux (lx).
Formula: lx = fc × 10.76391. Calculation: 9 × 10.76391 = 96.87519 lx.
Convert Foot-Candle (fc) to Lux (lx) online with our free unit converter. In illuminance, 1 fc = 10.76391 lx. Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.
Worked example: converting Foot-Candle to Lux
- Step 1 — start with the formula. lx = fc × 10.76391
- Step 2 — substitute your figure. 9 fc × 10.76391
- Step 3 — read the result. 9 fc = 96.87519 lx
- Step 4 — check it in reverse. fc = lx × 0.0929030436 returns 9 fc, which matches the figure you started with.
Illuminance Converter
4 units available
9 fc = 96.87519 lx
Formula:
lx = fc × 10.76391With your value: 9 fc = 96.87519 lx
Other Foot-Candle to Lux conversions
Foot-Candle to Lux Conversion Table
| Foot-Candle (fc) | Lux (lx) |
|---|---|
| 0.5 | 5.381955 |
| 1 | 10.76391 |
| 2 | 21.52782 |
| 5 | 53.81955 |
| 10 | 107.6391 |
| 15 | 161.45865 |
| 20 | 215.2782 |
| 25 | 269.09775 |
| 50 | 538.1955 |
| 100 | 1,076.391 |
| 250 | 2,690.9775 |
| 500 | 5,381.955 |
| 1000 | 10,763.91 |
Lux to Foot-Candle Conversion Table
| Lux (lx) | Foot-Candle (fc) |
|---|---|
| 0.5 | 0.046452 |
| 1 | 0.092903 |
| 2 | 0.185806 |
| 5 | 0.464515 |
| 10 | 0.92903 |
| 15 | 1.393546 |
| 20 | 1.858061 |
| 25 | 2.322576 |
| 50 | 4.645152 |
| 100 | 9.290304 |
| 250 | 23.225761 |
| 500 | 46.451522 |
| 1000 | 92.903044 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Foot-Candle (fc)
Illuminance
Derived from the lux (1 lx = 1 lm/m²); the foot-candle is 1 lm/ft².
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Lux (lx)
Illuminance
Derived from the lux (1 lx = 1 lm/m²); the foot-candle is 1 lm/ft².
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Standards and context behind Foot-Candle to Lux
- EN 12464-1
- European workplace lighting standard specified in lux.
- IES
- US practice quotes foot-candles; 1 fc = 10.7639 lx.
How to Convert Foot-Candle to Lux
To convert from Foot-Candle (fc) to Lux (lx), multiply the value by 10.76391.
Formula: lx = fc × 10.76391
Reverse: fc = lx × 0.0929030436
Step-by-Step Example
- Start with your value in Foot-Candle. For example: 5 fc
- Multiply by the conversion factor: 5 x 10.76391
- The result is: 53.81955 lx
Foot-Candle and Lux Relationship
This calculation facilitates standardized conversion between recognized units of illuminance. Since 1 Foot-Candle equals approximately 10.7639 Lux, the Foot-Candle represents a larger unit interval than the Lux. Understanding the relationship between Foot-Candle and Lux is essential for accurate calculations in physics, engineering, commerce, and daily applications.
About Foot-Candle
The Foot-Candle (symbol: fc) is a recognized unit in the US Customary / Imperial measurement framework, utilized within illuminance applications for precision and standardized data representation.
Common uses of Foot-Candle: illuminance calculations, engineering and science, education.
About Lux
Lux (lx) is the SI unit of illuminance, measuring luminous flux per unit area. It is equal to one lumen per square meter.
Fun Fact: Direct sunlight is about 32,000 to 100,000 lux.
Common uses of Lux: lighting design, photography, workspace safety.
Frequently Asked Questions
- What is 9 Foot-Candle in Lux?
- 9 Foot-Candle equals 96.87519 Lux.
- How many Lux are in 1 Foot-Candle?
- There are exactly 10.76391 Lux in 1 Foot-Candle. This means the conversion factor from Foot-Candle to Lux is 10.76391.
- What is the formula to convert Foot-Candle to Lux?
- The formula to convert Foot-Candle to Lux is: lx = fc × 10.76391. For example, to convert 10 Foot-Candles to Lux, you would multiply 10 by 10.76391.
- What is a Foot-Candle?
- The Foot-Candle (symbol: fc) is a recognized unit in the US Customary / Imperial measurement framework, utilized within illuminance applications for precision and standardized data representation.
- What is a Lux?
- Lux (lx) is the SI unit of illuminance, measuring luminous flux per unit area. It is equal to one lumen per square meter.
- What are the common uses of Foot-Candle?
- The Foot-Candle is commonly used in illuminance calculations, engineering and science, education.
- How many lux is an office meant to have?
- EN 12464-1 sets 500 lx (about 46 fc) for general office work.
Related Illuminance Conversions
Cite this page
UnitConvertLab. (2026). 9 Foot-Candle to Lux. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/9-foot_candle-to-lux