Roofing Calculator – Roof Area and Materials Calculator

Calculate roof area, materials needed, and costs for roofing projects. Account for roof pitch, waste factors, and different roofing materials.

Roofing Calculator – Roof Area and Materials Calculator

Calculate roof area, materials needed, and costs for roofing projects. Account for roof pitch, waste factors, and different roofing materials.

Length of the roof

Width of the roof

Roof pitch (rise in inches per 12 inches run)

Waste factor for materials

Type of roofing material

🏠
12.5
squares of roofing
100
Square Feet
4"
Depth
Project Coverage
100 sq ft coverage

Calculating Roof Area and Materials

Accurate roof calculations are essential for ordering the right amount of materials and estimating project costs. Roof pitch significantly affects the actual surface area.

How to Use This Calculator

Follow these simple steps to get accurate results:

  1. Enter your roof length (feet)
  2. Enter your roof width (feet)
  3. Enter your roof pitch (rise/run)
  4. Enter your waste percentage (%)
  5. Enter your material type
  6. Click the "Calculate" button to see your results
  7. Review the detailed breakdown and explanation

Why Use Our Roofing Calculator – Roof Area and Materials Calculator?

  • 100% free and no registration required
  • Instant, accurate calculations with professional formulas
  • Mobile-friendly design that works on any device
  • Privacy-focused - your data never leaves your browser
  • Educational content to help you understand the results

Frequently Asked Questions

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