Enter the total floor area and the site area into the calculator to determine the plot ratio. The plot ratio is a measure of the total floor area of a building compared to the size of the plot on which it stands.
Plot Ratio Formula
The following formula is used to calculate the plot ratio:
PR = TFA / SA
Variables:
- PR is the plot ratio
- TFA is the total floor area of the building (square feet)
- SA is the site area (square feet)
To calculate the plot ratio, divide the total floor area of the building by the site area.
What is a Plot Ratio?
Plot ratio, also known as floor area ratio (FAR), is a key determinant in urban planning that helps to control the density of buildings in a given area. It is the ratio of a building’s total floor area to the size of the piece of land upon which it is built. This ratio is used by planners to ensure a balance between the built environment and open space, and to manage the intensity of land use in urban areas.
How to Calculate Plot Ratio?
The following steps outline how to calculate the Plot Ratio.
- First, determine the total floor area of the building (TFA) in square feet.
- Next, determine the site area (SA) in square feet.
- Next, gather the formula from above = PR = TFA / SA.
- Finally, calculate the Plot Ratio (PR).
- After inserting the variables 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 floor area of the building (TFA) = 15,000 sq ft
Site area (SA) = 3,000 sq ft
