Planning a roof replacement or a repair? This free roof shingle calculator tells you how many shingle bundles you need. Enter your roof length, width, and pitch. You get roofing squares, bundle count, and material cost in seconds.
Roof Shingle Calculator
Enter your roof measurements to estimate shingle bundles, roofing squares, and material cost.
Your estimate
Estimate only. Actual needs vary with roof complexity, valleys, dormers, and manufacturer specs. Always confirm with your supplier or roofer before ordering.
Need a roofer in Texas City?
Skip the math. Get a free, no-pressure roof inspection and exact quote.
Call (409) 290-5353Serving Texas City & Galveston County, TXDo not know your roof size yet? Start with the roof area calculator to get your squares, then come back here.
How to use this calculator
- Measure your roof length and width in feet.
- Pick your roof pitch. That is the rise over a 12 inch run.
- Choose your shingle type and waste allowance. 10 percent works for most roofs.
- Click calculate. Done.
Frequently asked questions
How many shingles come in a bundle? A standard bundle covers about 33.3 square feet. Three bundles make one roofing square.
What is a roofing square? One square equals 100 square feet of roof area. Roofers use squares to estimate material and labor.
How much waste should I add? Add 10 percent for a simple gable roof. Add 12 to 15 percent for hip roofs or roofs with valleys and dormers.
Does roof pitch change the estimate? Yes. A steeper roof has more surface area than its footprint. This calculator adjusts for pitch automatically.
Need a roofer in Texas City? Skip the math and get a free roof inspection with an exact quote. Call (409) 290-5353. We serve Texas City and Galveston County, TX.