Roof Area Calculator

Draw roof outlines on the map

How to use:

  1. Search an address or use your location
  2. Click Draw Polygon to outline your roof
  3. Adjust pitch, overhang, and waste settings
  4. View calculated roof area instantly

Location

Units

Drawing Tools

Configuration

Calculated Results

Base Area (footprint) -- ft²
Actual Roof Area -- ft²
Total with Waste -- ft²
Perimeter -- ft
Pitch Ratio --
Roofing Squares --

Calculations use geodesic methods for accuracy.

Polygon areas are measured on Earth's surface.

Move cursor over the map...