

Roof Shingle Calculator
Roof Shingle Calculator
Roof Geometry & Area
Length & Width
Footprint Area ⓘ If non-zero, overrides L×W
Roof Pitch
Slope Factor
Roof Area
Roof Area (squares) ⓘ 1 square = 100 ft²
Shingle Material Requirements
Coverage per Bundle
Bundles Needed
Shingles per Bundle
Total Shingles
This calculator is for general informational purposes only. Please verify all results with a licensed contractor, as actual project requirements may vary.
Key Features
✔ User-friendly interface with intuitive input fields and clearly labeled measurements.
✔ Real-time calculation of rafter length using the Pythagorean theorem.
✔ Automatic conversion between millimeters and inches for versatile usage.
✔ Detailed roof pitch outputs in degrees, percentage, and x:12 format.
✔ Instant result sharing via a convenient clipboard copy feature.
✔ Responsive design for optimal performance on all devices.
How to Use It
- Roof Area Calculation: Simply enter your house dimensions and roof pitch to determine the total square footage of your roof. This ensures you order the right amount of materials, reducing waste and unexpected costs.
- Material Cost Estimation: Input your unit price per square foot to quickly calculate the total cost of roofing materials. Whether you're using asphalt shingles, metal roofing, or another material, our calculator adapts to your pricing.
- Customizable Inputs: Adjust key variables like pitch ratio and unit price to get precise cost estimates tailored to your project’s needs.
- Instant Results: Get an accurate cost breakdown in seconds—no complex formulas or manual calculations required.
Plan Your Roofing Project with Confidence
Our Roofing Calculator takes the guesswork out of estimating your roof size, making it easier to plan your project effectively. Whether you're a contractor looking to provide quick quotes or a homeowner budgeting for a new roof, this tool empowers you with fast, accurate, and reliable projections.
Save time, reduce errors, and take control of your roofing expenses today! Use our Roofing Calculator to start planning with confidence.
Questions about any of our products?
We're ready to help you find a solution!