Free Tools / Roof Area Calculator

Roof Area Calculator

Estimate your roof area for repair, replacement, or re-roofing planning.

Calculation Method

Building Length(m)

Building Width(m)

Roof Length (ridge to eave)(m)

Roof Width (along ridge)(m)

Number of Roof Sides

Roof Pitch

Waste Factor

This calculator provides estimates based on your measurements. Actual area may vary due to dormers, valleys, and other features. A professional inspection is recommended for accurate quotes.

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