Roofing Squares Calculator
Convert roof area into roofing squares.
How It Works
Squares = Roof area ÷ 100. Bundles = Squares × 3.
Example
A 2,500 sq ft roof is 25 squares → 75 bundles of shingles.
Frequently Asked Questions
What exactly is one square?
A square is 100 sq ft of roofing surface, the standard unit used by roofers and suppliers.
How do I measure my roof area?
Measure each roof plane (length × width) and add them together, then divide by 100.
Does one square include waste?
No — squares measure the actual roof. Add waste separately when ordering.