Roofing Calculator — Free Online Tool
Shingle bundles and square footage for your roof
Estimate roof area, bundles of shingles, underlayment, waste factor. By pitch + dimensions.
📚 Learn more
Free roofing calculator
Calculate roof area, shingle bundles, underlayment for any pitch.
How to use this tool
- 1
Enter roof footprint
Length × width of the building footprint covered by roof.
- 2
Enter pitch
Roof slope as rise/12 (e.g. 6/12 = moderate pitch).
- 3
See shingle count
Bundles needed + underlayment.
Frequently Asked Questions
What is a "square" of shingles?
Pitch multiplier
Key Takeaways
- Roofing Calculator is a free, browser-based calculator tool — shingle bundles and square footage for your roof.
- No signup, no downloads, no file uploads — your data stays on your device.
- Works on desktop, tablet, and mobile. Install as a PWA for offline access.
How to Use Roofing Calculator
- Open the tool: Launch Roofing Calculator on Toololis — no account or download needed.
- Enter your data: Paste text, enter values, or select a file directly in your browser.
- Get instant results: Everything is processed locally — results appear immediately.
- Copy or download: Save your output or share it. Bookmark for quick access next time.
Roofing Calculator — Quick Facts
- Price
- Free — no limits, no watermarks, no paywalls
- Privacy
- 100% browser-based — no data is sent to any server
- Platform
- Any modern browser on desktop, tablet, or mobile
- Category
- Calculator Tools on Toololis
- Offline
- Works offline after first visit (Progressive Web App)
| Feature | Details |
|---|---|
| Tool | Roofing Calculator |
| Category | Calculator |
| Signup Required | No |
| File Upload | None — processed in browser |
| Mobile Support | Fully responsive |
| Cost | Free forever |
Why Use Roofing Calculator?
You should try Roofing Calculator for a quick, private way to shingle bundles and square footage for your roof. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.
On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.