Enter the floor efficiency ratio, usable floor area, and gross floor area into the calculator to determine the missing value.
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Floor Efficiency Ratio Formula
The following formula is used to calculate the floor efficiency ratio for a given usable floor area and gross floor area.
FER = (UFA / GFA) * 100
Variables:
- FER is the floor efficiency ratio (%)
- UFA is the usable floor area (sq ft)
- GFA is the gross floor area (sq ft)
To calculate the floor efficiency ratio, divide the usable floor area by the gross floor area and multiply the result by 100 to get a percentage.
What is Floor Efficiency Ratio?
The floor efficiency ratio (FER) is a measure of how efficiently the space within a building is utilized. It is the ratio of the usable floor area to the gross floor area, expressed as a percentage. A higher FER indicates a more efficient use of space, meaning that a larger proportion of the building's total area is usable for its intended purpose. This metric is commonly used in real estate and architectural design to assess the functionality and efficiency of a building's layout.
How to Calculate Floor Efficiency Ratio?
The following steps outline how to calculate the Floor Efficiency Ratio.
- First, determine the usable floor area (UFA).
- Next, determine the gross floor area (GFA).
- Next, calculate the floor efficiency ratio using the formula FER = (UFA / GFA) * 100.
- Finally, calculate the Floor Efficiency Ratio.
- 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.
Usable Floor Area (UFA) = 5000 sq ft
Gross Floor Area (GFA) = 6000 sq ft