Roofing Estimate Calculator

Calculate material and labor costs for roofing projects

Used by 2,500+ contractorsFree · No signup requiredBased on 2025 market rates

Roof Details

Flat projected area of the roof (pitch is calculated separately)

Steeper pitch increases actual roof surface area and labor difficulty

Material choice significantly affects total cost and lifespan

Existing layers must be removed before installing a new roof

Complex roofs with valleys, dormers, and skylights increase labor and waste

Material Cost Comparison (per square)

MaterialCost Range
Asphalt ShinglesSelected$300 – $450
Standing Seam Metal$600 – $900
Clay / Concrete Tile$800 – $1200
Flat / TPO Membrane$350 – $550
Wood Shakes$500 – $750
Slate$1200 – $2000

Pro Tip

Always add 10-15% waste factor for complex roofs. When in doubt, measure twice — satellite measurement tools can help verify field measurements.

Cost Breakdown

Enter your roof details and click Calculate to see your roofing cost estimate