Jessie Taylor
Lux and foot candles are two different units used to measure illuminance, or the amount of light received per unit area. Lux is the internationally accepted unit, representing the amount of light in one square meter. Foot candles, on the other hand, represent the amount of light in one square foot and are primarily used in the United States. To convert lux to foot candles, you can divide the lux value by the square feet conversion factor, which is derived from the ratio of square meters to square feet. This allows for effective communication of illuminance measurements in different contexts.
| Characteristics | Values |
|---|---|
| Lux | Represents the illuminance of 1 lumen per square meter |
| Foot Candles | Represents the amount of light in one square foot |
| Lux to Foot Candles Conversion | Divide the lux value by 10.76391 (square meters to square feet ratio) |
| Foot Candles to Lux Conversion | Multiply the foot candle value by 10.76391 |
| Lux to Foot Candles Example | 1 lux = 0.09290304 foot candles |
| Foot Candles to Lux Example | 1 foot candle = 10.76391 lux |
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What You'll Learn
Lux and foot candles are units used to measure illuminance
Lux is the internationally accepted illuminance unit used worldwide. It quantifies the amount of light in one square meter. One lux represents the illuminance of one lumen per square meter. In SI-derived units, illuminance is measured in lux (lx) or lumens per square meter (1 lx = 1 lm/m² = 1 cd·sr·m⁻²). In the CGS system, the unit of illuminance is the phot, which is equal to 10,000 lux.
Foot candles, on the other hand, express the amount of light in one square foot and are used mainly in the United States. Foot-candle is defined as the amount of illumination the inside surface of a 1-foot radius sphere would receive if there were a uniform point source of one candela in the exact center of the sphere. Alternatively, it can be defined as the illuminance on a 1-square-foot surface with a uniformly distributed flux of one lumen. In other words, it is the amount of light that actually falls on a given surface. The foot-candle is equal to one lumen per square foot.
To convert lux to foot candles, we can use the conversion factor derived from the square meters to square feet ratio. Since 1 square meter equals 10.76391 square feet, we can divide the lux value by this conversion factor. For example, an illuminance measurement of 100 lux can be converted to approximately 9.29 foot candles.
Conversely, to convert foot candles to lux, we can multiply the foot candle value by the conversion factor. For instance, to convert 15 foot candles to lux, we multiply by 10.76391, resulting in approximately 152.46 lux.
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The conversion factor is derived from square meters to square feet
To convert lux to foot-candles, you need to understand the conversion factor, which is derived from square meters to square feet. Square meters and square feet are both units of area measurement used in different parts of the world. Square meters are commonly used in countries that have adopted the metric system, such as most European countries, while square feet are used in the United States and other countries that have not fully adopted the metric system.
One square meter is equal to 10.76391 square feet, or approximately 10.76 square feet when rounded. This conversion factor is derived from the fact that one square meter is equal to the area of a square with sides that are each one meter long. Similarly, one square foot is equal to the area of a square with sides that are each one foot long.
To convert lux to foot-candles, you can use the conversion factor derived from square meters to square feet. The formula for converting lux to foot-candles is by multiplying the lux value by 10.76391 (the conversion factor). For example, to convert 15 lux to foot-candles, you would multiply 15 by 10.76391, resulting in approximately 152.45 foot-candles.
Alternatively, you can use the reciprocal of the conversion factor to convert foot-candles to lux. In this case, you would multiply the foot-candle value by 0.092903, which is the reciprocal of 10.76391. For instance, if you have 200 foot-candles and want to convert it to lux, you would multiply 200 by 0.092903, resulting in approximately 18.58 lux.
Understanding the conversion factor derived from square meters to square feet allows for accurate conversions between lux and foot-candles, facilitating cross-system illumination calculations and comparisons.
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1 lux = 0.09290304 foot candles
Lux and foot candles are both units used to measure illuminance, or the amount of light that a surface receives. Lux is the internationally accepted unit, representing the amount of light in one square meter. Foot candles, on the other hand, represent the amount of light in one square foot and are primarily used in the United States.
To convert lux to foot candles, you need to use the conversion factor derived from the square meters to square feet ratio. This is because lux and foot candles are based on different units of area (square meters vs. square feet). The conversion factor is 10.76391, as 1 square meter is equal to 10.76391 square feet.
So, to convert from lux to foot candles, you simply divide the lux value by this conversion factor. For example, if you have a lux value of 100, you would divide 100 by 10.76391, which gives you approximately 9.29 foot candles.
Therefore, when we apply this conversion factor to 1 lux, we get the following calculation: 1 lux / 10.76391 = 0.09290304 foot candles. This means that 1 lux is equal to approximately 0.09290304 foot candles.
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1 foot candle = 10.76391 lux
Lux and foot candles are both units used to measure the illuminance or light intensity in a room. Lux is the internationally accepted unit and measures the amount of light in one square meter. Foot candles, on the other hand, measure the amount of light in one square foot and are mainly used in the United States.
To convert lux to foot candles, you need to divide the lux value by the square feet conversion factor. So, for 1 lux, we divide it by the conversion factor, which is approximately 0.09290304. This gives us the value of 1 foot candle, which is approximately 10.76391. This means that 1 foot candle is equivalent to about 10.76391 lux.
Alternatively, we can look at it as 1 square meter being equal to 10.76391 square feet. So, if you have an illuminance measurement in lux, you can divide it by the conversion factor to get the equivalent value in foot candles. For example, if you have a measurement of 100 lux, you can divide it by the conversion factor to get approximately 9.29 foot candles.
Conversely, if you want to convert foot candles to lux, simply multiply the foot candle value by the conversion factor. This will give you the corresponding lux value. This understanding of lux-to-foot-candle and foot-candle-to-lux conversions is important for effectively communicating illuminance measurements in different settings and making informed decisions about lighting conditions.
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Lux is used worldwide, while foot candles are used mainly in the US
Lux and foot candles are two commonly used units for measuring light intensity. They are important metrics in the field of lighting design, helping determine the appropriate level of illumination for various applications.
Lux is the metric unit of measurement used in the International System of Units (SI). It measures the amount of light that falls on a surface in lumens per square meter (lm/m²). Lux is used worldwide, especially in Europe and other parts of the world that follow the metric system. It is also the standard unit of measurement for luminance in film and photography.
On the other hand, foot candles are the imperial unit of measurement, widely used in the United States and other countries that still follow the imperial system. Foot candles represent the amount of light in one square foot. One foot candle is equivalent to one lumen per square foot.
The primary distinction between lux and foot candles lies in the units they employ. Lux uses the metric system, while foot candles use the imperial system. The choice between the two often depends on geographical location and specific industry standards.
Since lux and foot candles represent the same concept of light intensity, they can be converted from one unit to the other. The conversion factor is approximately 10.764, meaning one lux is roughly equal to 0.0929 foot candles. To convert lux to foot candles, divide the lux value by 10.764, or multiply foot candles by 10.764 to obtain lux.
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Frequently asked questions
Lux and foot candles are units used to measure illuminance, specifically the amount of light received per unit area. One lux represents the illuminance of one lumen per square meter. Foot candles express the amount of light in one square foot and are primarily used in the United States.
To convert lux to foot candles, divide the lux value by the square feet conversion factor. 1 square meter equals 10.76391 square feet, so the conversion factor is 10.76391. For example, 1 lux = 0.09290304 foot candles.
To convert foot candles to lux, multiply the foot candle value by the conversion factor. For example, if you have a foot candle value of 1, multiply by 10.76391 to get the equivalent lux value.
There are several online conversion tools available, such as TranslatorsCafe.com and Omnicalculator.com. These tools allow you to quickly convert between lux and foot candles by entering the given value.
