Free Calculator

Roof Area Calculator

Estimate your roof area for repair, replacement, or waterproofing planning.

Calculation Method

Building Length(m)

Building Width(m)

Roof Pitch

Steeper roofs have more surface area than they appear from the ground.

Waste / Overlap Factor

Our team will inspect your roof and provide an accurate quote. RM30 inspection fee — waived when you approve the repair.

Need a Professional Roofing Opinion?

Calculators give estimates. Our licensed team provides the real diagnosis. RM30 inspection — waived when you approve the repair.

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