Is this a roofing calculator or a builder?

This page provides a builder that lets contractors create and embed a free roofing calculator on their website. Set pricing variables, brand the widget, and connect a webhook for leads.

Can I embed the roofing calculator on my site?

Yes. Copy the provided widget code and paste it before the closing tag. The widget renders automatically and uses your configured colors, logo, pricing, and webhooks.

What costs are included in the estimate?

Labor, materials, disposal, tear-off, underlayment, waste factor, permits, overhead & profit, regional multiplier and sales tax, with pitch, complexity and stories adjustments.

Does the tool store customer data?

No. The widget posts lead data directly to the webhook URL you configure. Keep webhook authentication None and allow CORS for your domain so submissions succeed.

Roof Measurement Master Toolkit

Measure roof area from dimensions and pitch; pick units, add waste, estimate bundles.

Roof area calculator + pitch converter + bundle estimator in one view
Waste, slope factor, and material totals update instantly as you type

$248,000,000+

$ Calculated

People using

Why roof pros use this toolkit

Measure roof area, convert pitch, and prep bundle counts in the same responsive layout that powers the standalone roofing calculator.

Length × Width in feet or meters
Pitch multiplier from rise/run
Live Surface in sq ft or squares
Waste controls with slider + numeric precision

Bundles per square guidance for suppliers
Angle-accurate pitch diagram
Copy results as Markdown for estimates
Usage KPIs update with every valid calculation

Roof Pitch Calculator (Degrees, Ratio, Percent)

Enter footprint dimensions, switch between feet and meters, and fine-tune pitch to see the live multiplier, angle, and conversions.

Length (ft)Width (ft)Units

Pitch (rise)Run (inches)Pitch multiplier

footprint × multiplier = roof area

Pitch Converter

Ratio (x/12)Degrees (°)Percent (%)

Footprint (sq ft)Surface

Diagram updates with atan(rise ÷ run) so the rafter line and angle label always match your pitch.

Waste & bundles planning

Plan for offcuts and packaging. Adjust waste, then refine bundles per square with your brand coverage.

Waste (%)

Average waste is about 15%. Complex roofs with hips/valleys/dormers can be 20–25%+. Adjust if you know your roof.

Bundles per square

Avg is ~3 bundles/square. Enter your brand’s exact coverage to refine.

Results

Surface totals and bundle counts ready to share with your crew or customer.

1,542.89 sq ft

Area to Purchase · 15.429 squares

Surface units

Estimated bundles47 bundles

Avg is ~3 bundles/square. Enter your brand’s exact coverage to refine.

Copy Markdown and paste into your estimate email or CRM.

How Accurate Is This Calculator?

How do I calculate roof area from pitch?

Enter the footprint dimensions, set your units, and supply rise and run. The toolkit multiplies length × width, converts meters to feet when needed, and applies the pitch multiplier √(rise² + run²) ÷ run to match the sloped surface.

What is a roofing square?

One roofing square equals 100 square feet. Use the Surface units dropdown to flip between square feet and squares so estimates align with shingle packaging and supplier quotes.

How accurate is this roof area calculator?

Results are directionally accurate when measurements are correct. Footprint inputs, pitch, waste, and bundles per square can be customized to reflect your roof, and values persist so repeat checks stay consistent.