Roofing Calculator

Estimate the cost to replace a roof on your home, shed, or garage in a click of a button! Just plug in your numbers, select the roof pitch or slope, indicate approximate roof difficulty, choose your desired roof type, and let our Free Roofing Calculator do the rest!

Roof length (eave side): # ft.
Roof width (gable side): # ft.
Roof Slope:
Roof Difficulty:
Roof Tear-off:
Number of floors:
Number of Sky-lights:
Number of Chimneys:
Ridge vent: # ft.
Roofing material:

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Supported Roof Types:

Our calculator estimates the cost of materials and warrantied-labor for any major type of roof including the basic 3-tab shingles, architectural shingles, PVC, TPO, EPDM rubber, built-up roofs, cedar shingles, clay tiles, natural, slate, and metal roofing. All prices are based on the US average roof replacement costs as surveyed by the Remodeling Magazine in conjunction with regional pricing data from contractors we've surveyed.

To make your pricing more precise, you can choose the number of floors on your home, number of skylights and chimneys that will need to be properly re-flashed and shingled around, as well as indicate whether or not you want to include the cost of the tear off and disposal of the old roof.

Estimating the Materials:

If you need to estimate the cost of materials and the number of bundles of shingles required for the job, you can do so here.

Install Roof Shingles

Average price
Install Metal Roof

Average price
Install Flat Roof

Average price

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