Skip to content

Home
Calculators
Guides
About
Contact

Browse calculators

Calculate My Build

Roofing Calculator

Exterior

Roofing Calculator

Estimate roof area, roofing squares and shingle bundles.

Building length * ft Building width * ft Roof pitch rise per 12 inches * in Waste allowance % Bundles per roofing square * Price per bundle $

Estimated requirement

Assumptions

Assumes a simple roof whose horizontal footprint is length × width. Complex valleys, dormers and hips may require additional waste.

Planning estimate only. Verify quantities, product coverage, local prices, structural requirements and building codes before purchasing or construction.

My WordPress Blog

Build Smarter. Estimate Better.

Explore

Important

Methodology
Disclaimer
Privacy policy
Contact

© 2026 Calculate My BuildPlanning estimates for better projects.