Professional Roofing Calculators

 free calculators trusted by contractors, architects, and homeowners across the globe.

Roof Measurement Calculators

Roof Pitch Calculator

Get an instant estimate of your total roofing project cost based on size and materials.

Roof Area Calculator

Get your roof’s total surface area in square feet in seconds  the single most important number for ordering any roofing material accurately.

Roof Truss Calculator

Calculate truss dimensions, spacing, and member lengths to code the engineering-grade tool contractors and builders use for framing.

Roof Load Calculator

Estimate the load your roof must support to help with safer structural planning and construction decisions.

Hip Roof Calculator

Get accurate measurements and material estimates for hip roofs without dealing with complicated calculations.

Gambrel Roof Calculator

Calculate gambrel roof dimensions and measurements quickly for a smoother planning and building process.

Roof Material Calculators

Modern American home with an architectural asphalt shingle roof for shingle bundle, roofing square, and roof area calculations.

Shingle Calculator

Know precisely how many shingle bundles and squares you need, waste included, so you finish the job without a costly second trip to the supplier.

metal roof calculator

Metal Roof Calculator

Estimate the exact number of metal panels, fasteners, and total cost for your roof — works for standing-seam, corrugated, and ribbed profiles.

Tile Roof Calculator

Estimate the number of clay or concrete tiles plus the total weight load your structure must support  essential for tile roof planning.

Siding & Exterior Calculators

Gutter calculator for sizing gutters and downspouts on residential roofs

Gutter Calculator

Work out how many feet of gutters and downspouts your roof needs for proper drainage and to prevent water damage to your foundation.

metal roof calculator

Metal Roof Calculator

Estimate the exact number of metal panels, fasteners, and total cost for your roof — works for standing-seam, corrugated, and ribbed profiles.

Tile Roof Calculator

Estimate the number of clay or concrete tiles plus the total weight load your structure must support  essential for tile roof planning.