Advanced Roof Area Calculator

Roof Area Calculator

Estimate your total roof surface area based on footprint and pitch.

Total length of the house footprint.

Total width of the house footprint.

Vertical rise for every 12 units.

The standard horizontal run is 12.

Formula Used: Surface Area = (L × W) × M

Where $M = \sqrt{1 + (\text{Rise}/\text{Run})^2}$

This calculation provides the total roof surface area, which is typically larger than the house footprint due to the pitch (slope).

Roof Area Calculator About

Easily calculate the total area of your roof with our free online Roof Area Calculator. Whether you’re planning a renovation, estimating roofing materials, or preparing for installation, this tool provides fast and accurate results. Simply enter the dimensions of your roof, select the shape, and get instant calculations. Perfect for homeowners, contractors, and architects, this calculator saves time and eliminates manual errors.

Features:

  • Free and easy-to-use online tool
  • Supports multiple roof shapes (flat, gable, hip, etc.)
  • Instant and accurate area calculation
  • Helps estimate roofing material requirements
  • No registration or downloads required

Optimize your roofing projects and make smarter decisions with this Roof Area Calculator today!

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