The formula to calculate the Parking Ratio (PR) is:
PR=RSQFPS
Where:
A parking ratio is defined as the total ratio of the rentable square footage of a building to the total number of parking spots of that building. Typically, this ratio is reduced to parking spots per 1,000 square feet. For example, a ratio of 10,000/1 would be reduced to a ratio of 10:1.
Let's assume the following values:
Using the formula to calculate the Parking Ratio:
PR=50000250=200 sq ft per spot
Reduced Parking Ratio:
2001000=0.2 spots per 1,000 sq ft
The Parking Ratio is 200 sq ft per spot, or 0.2 spots per 1,000 sq ft.