Roofing Calculator

Estimate shingle bundles for a roof. A roofing square is about 9.29 m² and usually needs three bundles.

Roof area (m²)

Bundles per square

Waste (%)

Shingle bundles

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Roof squares—

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How it works

Squares = area ÷ 9.29, bundles = squares × 3

Frequently Asked Questions

What does the Roofing Calculator do?

Estimate shingle bundles for a roof. A roofing square is about 9.29 m² and usually needs three bundles.

Do I need to sign up?

No. It is free and runs entirely in your browser on any device.