Roofing Shingles Calculator
Enter your roof’s dimensions, pitch, shingle coverage, and cost per bundle. This calculator will estimate the total roof area (including slope), the number of bundles, and total cost for your roofing project. You can also factor in waste (e.g. 10%).
About Our Free Roofing Shingles & Materials Calculator
Planning a roof replacement or new roofing project? Our Roofing Shingles & Materials Calculator helps you estimate the total number of shingle bundles you need by factoring in length, width, pitch, waste percentage, and coverage per bundle. You’ll also get an estimated total cost once you enter the cost per bundle.
How it works: Enter your roof’s dimensions in any units (feet, inches, yards, meters, or centimeters). Specify your roof pitch (rise over 12, e.g., “4” means 4 inches of rise per 12 inches of run). Add a waste percentage (often 5–15%) to account for cutting and overlapping. Provide the coverage area per bundle of shingles and the cost per bundle. Click “CALCULATE” to see how many bundles you’ll need and your approximate project cost.
Easily embed this roofing calculator on your site using the iframe code provided above. Explore more construction tools at Apex Calculator.