Roofing Calculator

Estimate materials, area, bundles and project cost for any roof

1 Roof area input method

House footprint area

ft²

Number of roof sections

2 Roof pitch & shape

Roof pitch (rise / run)

Roof shape / type

8/12 pitch
Angle: 33.7°
Area multiplier: ×1.346

3 Roofing material

Material type

Bundles per square

4 Waste factor & accessories

Waste / cut factor

Underlayment

Ridge / hip length (ft)

Valley length (ft)

Eave / drip edge (ft)

5 Cost parameters (per square = 100 ft²)

Material cost

$/sq

Labor cost

$/sq

Tear-off / disposal

$/sq

Roofing Estimate Results

Based on your inputs

Cost breakdown

Disclaimer: These figures are estimates for planning purposes only. Material quantities include a waste factor. Costs vary significantly by region, contractor, and market conditions. Always obtain multiple quotes from licensed roofing contractors before proceeding.