Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Roof Shingle Estimator (with Pitch)

Estimate the shingle bundles needed for a roof using the building footprint and the roof pitch. Enter the footprint length and width, choose the pitch to set the slope multiplier, add a waste allowance, and pick the shingle type to get the bundle count.

Footprint Length (ft)

Footprint Width (ft)

Roof Pitch

Waste Allowance (%)

Shingle Type

Construction

Roofing Shingle Calculator

Calculates the number of roofing squares needed to cover a roof, including a user-defined waste allowance. Use this when ordering shingles for a new roof or a re-roofing project.

Roof Area (sq ft)

Waste Allowance

Key differences

	Roof Shingle Estimator (with Pitch)	Roofing Shingle Calculator
Category	Construction	Construction
Inputs required	5	2
Result	Shingle Bundles Needed (bundles)	Shingle Squares Needed (squares)
What it does	Estimate the shingle bundles needed for a roof using the building footprint and the roof pitch. Enter the footprint length and width, choose the pitch to set the slope multiplier, add a waste allowance, and pick the shingle type to get the bundle count.	Calculates the number of roofing squares needed to cover a roof, including a user-defined waste allowance. Use this when ordering shingles for a new roof or a re-roofing project.