Roofing Calculators

Free roofing calculators for pitch, angles, materials, and costs. Calculate roof area, pitch factor, and material estimates for your roofing project.

Calculate gambrel roof rafter lengths, angles, and roof area. Free online gambrel roof truss calculator for barn-style roofs.

Calculate roof pitch, angle, and multiplier factor. Free online roof pitch calculator with chart for common roof slopes.

Calculate roof pitch angle and multiplier factor for any pitch ratio. Reference chart for common roof slopes from 1/12 to 12/12.

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