Shingle Calculator

Figuring out how many shingles or how much roofing material you need for a project is one of the most common headaches homeowners and contractors face. Order too little and you will face delays and additional delivery charges. Order too much and you are stuck with expensive leftovers you may never use. Getting the measurements right matters, both for budgeting and for ensuring your project stays on schedule.

Our shingle and material calculator takes the guesswork out of the process. By entering your roof dimensions, pitch, and material type, you will get an accurate estimate of how many bundles of shingles, rolls of underlayment, or squares of material you need to complete your roofing project. The calculator accounts for waste, which is critical since cutting around chimneys, valleys, and other roof features always results in some unusable material.

This tool is useful whether you are planning a DIY project, preparing to get contractor quotes, or simply trying to understand what a fair material estimate looks like. Keep in mind that roof geometry can be complex, and this calculator works best for straightforward roof shapes. If your roof has multiple levels, dormers, or unusual angles, consider getting a professional measurement to ensure accuracy.

Shingle & Material Calculator

Estimate how much roofing material you may need. Results are approximate and should be confirmed by a licensed contractor.

Use Simple for one roof area or Advanced for multiple sections.

Length (ft)
Width (ft)
Pitch

Pitch tip: Measure 12 inches horizontally along the roof, then measure how many inches it rises. A 6-inch rise over 12 inches is a 6:12 pitch.

Waste: 10%

Waste tip: Simple roofs are often 5-10% waste. Cut-ups, hips, and valleys can push waste closer to 15-20%.

Need help sizing materials? A local roofer can verify measurements and provide a complete material list.

Once you know how much material you need, the next step is finding qualified contractors who can handle the installation. Poor installation can ruin even the best materials, so choosing experienced, licensed roofers is essential. Browse our contractor directory to connect with local roofing professionals who can provide detailed estimates, verify your material calculations, and complete your project with quality workmanship.

Find a Roofing Pro Near You

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    Common Questions

    • How long should a roof last in Connecticut?

      Asphalt shingle roofs in Connecticut typically last 15-25 years, while metal roofs can last 40-70 years, with actual lifespan depending on material quality, installation, maintenance, and exposure to Connecticut’s freeze-thaw cycles and coastal weather.

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    • What is the difference between Class 3 and Class 4 shingles?

      Class 4 shingles are designed to provide higher impact resistance than Class 3 shingles and are better suited for hail-prone areas. Some insurers offer discounts for Class 4 shingles.

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    • Are there tax credits for roof replacement?

      Federal tax credits are available for energy-efficient roofing, including 30% credits for solar installations through 2032 and up to $600 for qualifying ENERGY STAR-rated reflective roofing materials.

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