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

Fill in the required fields to see your result.

Construction

Window Replacement Cost Calculator

Estimates the total cost of a window replacement project based on the number of windows, window type, and per-window labour cost. Use it to budget before getting contractor quotes.

Number of Windows (windows)

Window Type

Labor Cost per Window ($)

Fill in the required fields to see your result.

Key differences

	Roof Shingle Estimator (with Pitch)	Window Replacement Cost Calculator
Category	Construction	Construction
Inputs required	5	3
Result	Shingle Bundles Needed (bundles)	Total Project Cost ($)
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.	Estimates the total cost of a window replacement project based on the number of windows, window type, and per-window labour cost. Use it to budget before getting contractor quotes.