Roof Shingle Calculator
Estimate shingles, underlayment, and materials for your roofing project.
Length of the roof
Width of the roof
Roof Options
Affects shingle coverage
Bundle coverage area
Add waste for cuts
Price per bundle of shingles
Bundles
0
bundles
Squares
0.0
sq
Total Cost
$0
USD
Roof Area
0.0 ft²
Underlayment
0 rolls
Nails
0 lbs
Ridge Caps
0 bundles
Coverage per Bundle
0.0
ft²
Shape
Rectangle
selected
Slope
Medium
selected
1 square = 100 ft². Most shingle bundles cover 30-33 ft². Add 10% for waste.
Bundles = (Area × Waste) / Bundle Coverage
1 roll of underlayment ≈ 400 ft²