Roof Pitch Calculator
Calculate roof pitch angle and ratio
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Roof Pitch Calculator
Calculate roof pitch from rise and run. Shows ratio, angle, and roof type.
Pitch is expressed as rise:12 (e.g. 6:12 means 6 inches rise per 12 inches run)
How to Use Roof Pitch Calculator
Enter rise
Enter vertical rise.
Enter run
Enter horizontal run.
View result
See pitch ratio, degrees, and roof type.
Why Choose AllTools Roof Pitch Calculator?
- ✓ Pitch ratio (X:12)
- ✓ Degrees angle
- ✓ Roof type classification
- ✓ Rise/run solver
- ✓ Rafter length
- ✓ No data stored
Why Use This Tool
- ★ All calculations happen in your browser — project data stays private
- ★ Completely free with no usage limits
- ★ No account or registration required
- ★ Practical results for real construction projects
- ★ Works on mobile devices for on-site calculations
Related Resources
Frequently Asked Questions
What is roof pitch? ▼
Roof pitch is expressed as rise over run (e.g., 6:12 means 6 inches of rise for every 12 inches of run).
What roof types does it classify? ▼
Flat (0-1:12), low slope (2-4:12), conventional (4-9:12), and steep slope (9:12 and above) based on pitch ratio.
Does this work on mobile? ▼
Yes. All AllTools tools are fully responsive and work on phones and tablets.
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