Enter the total roofing area (ft^2) and the cost per square foot of roof ($/ft^2) into the Roofing Cost Calculator. The calculator will evaluate and display the Roofing Cost. 

Roofing Cost Formula

The following formula is used to calculate the Roofing Cost. 

RC = RA * CPSF
  • Where RC is the Roofing Cost ($)
  • RA is the total roofing area (ft^2) 
  • CPSF is the cost per square foot of roof ($/ft^2) 

To calculate the roofing cost, multiply the roofing area by the cost per square foot.

How to Calculate Roofing Cost?

The following example problems outline how to calculate Roofing Cost.

Example Problem #1:

  1. First, determine the total roofing area (ft^2). The total roofing area (ft^2) is given as  500.
  2. Next, determine the cost per square foot of roof ($/ft^2). The cost per square foot of roof ($/ft^2) is provided as 20.00.
  3. Finally, calculate the Roofing Cost using the equation above: 

RC = RA * CPSF

The values given above are inserted into the equation below:

RC = 500 * 20.00 = 10,000.00 ($)

FAQ

What factors can affect the cost per square foot of roofing?
The cost per square foot of roofing can be influenced by several factors including the type of roofing material (asphalt shingles, metal, slate, etc.), the complexity of the roof’s design (simple gable roofs are typically less expensive than more complex designs like mansard or gambrel), the location of the property (labor and material costs can vary significantly by region), and the current prices of materials and labor.

How can I reduce my roofing costs without compromising quality?
To reduce roofing costs without sacrificing quality, consider selecting a mid-range roofing material that offers a good balance between cost and durability. Additionally, getting multiple quotes from reputable contractors can ensure competitive pricing. Timing your project during the off-peak season for roofing jobs may also result in lower labor costs. Regular maintenance of your roof can prevent minor issues from turning into major, costly repairs as well.

Is it possible to calculate the roofing cost for a partial roof replacement?
Yes, it is possible to calculate the cost for a partial roof replacement using the same formula: multiply the area of the roof that needs to be replaced (in square feet) by the cost per square foot of the chosen roofing material. It’s important to note that partial replacements may also incur additional costs for matching materials to the existing roof and potentially more complex labor, which should be considered in the overall estimate.