Roofing Shingle Calculator - Free, Instant, In Your Browser
Enter the roof area in square feet to calculate the number of roofing squares needed.
How to use Roofing Shingle Calculator
- 1Enter the required date(s) and details above.
- 2Click Calculate - Roofing Shingle Calculator runs instantly, right in your browser.
- 3Read your result below.
Your file is processed in your browser and is never uploaded.
Frequently Asked Questions
What's the formula?
Squares needed = ceiling(area / 100), since a "roofing square" is the industry-standard unit of 100 sq ft.
Is my data sent to a server?
No - everything runs entirely in your browser with JavaScript. Nothing is uploaded.