Enter the total lumens and the area into the calculator to determine the average foot candles.
Average Foot Candle Formula
The following formula is used to calculate the average foot candles for a given total lumens and area.
FC = \frac{L}{A}Variables:
- FC is the average foot candles
- L is the total lumens
- A is the area in square feet
To calculate the average foot candles, divide the total lumens by the area in square feet.
What is an Average Foot Candle?
An average foot candle is a unit of measurement that quantifies the amount of light that falls on a surface. It is commonly used in the field of lighting design to ensure that spaces are adequately illuminated. One foot candle is equivalent to one lumen per square foot. This measurement helps in determining the brightness of an area and is crucial for creating comfortable and functional lighting environments in various settings such as offices, homes, and public spaces.
How to Calculate Average Foot Candle?
The following steps outline how to calculate the average foot candle.
- First, determine the total lumens (L) provided by the light sources.
- Next, measure the area (A) in square feet that needs to be illuminated.
- Finally, calculate the average foot candles (FC) using the formula FC = L / A.
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Total Lumens (L) = 5000
Area (A) = 250 sq ft
Average Foot Candles (FC) = 20