Calculator
Roofing Shingles Calculator
Asphalt shingles. "Square" = 100 sq ft = ~3 bundles.
Calculate Roofing Shingles
You need
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square
- Area
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- With 10% overage
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- Or in bundle (33 sq ft)
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- Estimated cost (US avg)
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How this calculator works
Enter your shape and dimensions in feet. The calculator multiplies them out and converts to square, then adds 10% overage for waste — the industry standard for roofing shingles.
Cost shown is a US national average ($110 per square). Regional pricing pages are coming soon.