Roof Shingle Calculator
Estimate asphalt shingle bundles from roof square footage, waste allowance, and the bundle coverage for your specific shingle product.
Estimate asphalt shingle bundles
Verify the package coverage for your exact shingle product before purchasing.
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Roofing squares incl. waste—
Bundle coverage varies by product. The bundles-per-square field is editable so the calculator does not assume every shingle product is identical.
How this calculator works
The calculator first converts roof area to roofing squares after the waste percentage, then multiplies by the product-specific number of bundles per square. Always confirm coverage on the manufacturer packaging.