Calculate parking area for a number of spaces, how many stalls fit, or a parking ratio per 1,000 sq ft, using a typical 325 sq ft per space or your own.

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Parking Area Formula

The following two example problems outline the steps and information needed to calculate the Parking Area.

PARK = LA × PR/100
  • Where PARK is the Parking Area (ft2)
  • LA is the total lot area (ft2) 
  • PR is the parking ratio (%) 

To calculate parking area, multiply total lot area by the allocation percentage divided by 100. This percentage is different from a requirement stated as spaces per building area. Stall estimates use the supplied gross area or requirement and do not verify a layout or local code.

How to Calculate Parking Area?

The following example problems outline how to calculate Parking Area.

Example Problem #1:

  1. First, determine the total lot area (ft2).
    • The total lot area (ft2) is given as 1,000.
  2. Next, determine the parking ratio (%).
    • The parking ratio (%) is provided as 20.
  3. Finally, calculate the Parking Area using the equation above: 

PARK = LA * PR/100

The values provided above are inserted into the equation below and computed.

PARK = 1000 * 20/100 = 200.00 (ft2)

Example Problem #2: 

For this problem, the variables required are provided below:

total lot area (ft2) = 2,000

parking ratio (%) = 50

Test your knowledge using the equation and check your answer with the calculator.

PARK = LA * PR/100 = ?