🔧 Free Calculator
Calculate Roof Area
Measure roof square footage for shingles, metal roofing, or materials. Enter house dimensions, pitch, and overhangs.
🏠 Total Roof Area
0 sq ft
0 roofing squares
1 roofing square = 100 sq ft. Includes pitch multiplier and waste factor.
📐 How to calculate roof area: Multiply house footprint by roof pitch multiplier. For example, 5:12 pitch has multiplier ~1.08. Add overhangs for accurate measurement.
💡 Pro tip: Always order 10-15% extra shingles for waste, overlaps, and starter strips. Hip roofs require more material than gable roofs.