Shingle Calculator — Calculate Roofing Materials & Costs

Shingle Calculator

Calculate the number of shingles needed for your roofing project. Estimate materials, costs, and labor for asphalt, architectural, or luxury shingles.

Step 1: Roof Details

30 ft
4/12

Understanding Roof Pitch

Roof pitch is expressed as rise/run. A 4/12 pitch means the roof rises 4 inches for every 12 inches of horizontal run. Steeper roofs require more shingles due to increased surface area.

Step 2: Shingle Details

10%

About Shingle Types

3-Tab shingles are the most economical. Architectural shingles offer better durability and aesthetics. Premium shingles have longer warranties and enhanced weather resistance.

Shingle Calculation Results

Summary
Material Comparison
Cost Breakdown

Total Estimated Cost

$1,584
Total Squares: 13.2 squares
Shingles Needed
42 bundles
Roof Area
1,320 sq ft
Cost per Square
$120
Waste Included
10%

Shingle Type Comparison

Shingle Type Cost per Square Warranty Weight per Square Lifespan

Cost Breakdown Analysis

Shingle Calculation Formula

Squares = (Length × Width × Pitch Factor) ÷ 100

The number of shingle squares is calculated by determining your roof’s surface area, adjusting for pitch complexity, and dividing by 100 (since one square covers 100 sq ft).

Need Professional Roofing Advice?

Connect with our roofing experts for detailed estimates, material selection guidance, and installation recommendations for your roofing project.

Get Professional Advice