Roof Pitch Calculator
Calculate roof slope in degrees, percentage, or ratio. Perfect for roofing projects!
Roof Pitch Results
Enter values to calculate roof pitch.
Roof Pitch Standards
- Flat Roof: 0:12 to 2:12
- Low Slope: 3:12 to 4:12
- Conventional: 5:12 to 9:12
- Steep Slope: 10:12 and above
How to Measure Roof Pitch
Watch this quick tutorial to learn how to accurately measure roof pitch
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How to Use the Roof Pitch Calculator
This tool helps you determine the slope of your roof in different formats:
- Select Calculation Type: Choose between rise/run, angle, or percentage.
- Enter Values: Input the required measurements.
- Calculate: Get instant results in all formats.
Understanding Roof Pitch
- ✅ Rise/Run: The vertical rise per horizontal run (e.g., 6:12).
- ✅ Angle: The slope in degrees (e.g., 26.57° for a 6:12 pitch).
- ✅ Percentage: The slope as a percentage (e.g., 50% for a 6:12 pitch).
Why Calculate Roof Pitch?
Knowing your roof pitch helps with:
- ✔ Material Estimation (shingles, underlayment, etc.)
- ✔ Drainage Planning (preventing water pooling)
- ✔ Building Code Compliance (required slopes for certain roofs)
- ✔ Solar Panel Installation (optimal angle for efficiency)
- ✔ Roof Longevity (proper pitch reduces wear and tear)
Roof Pitch Best Practices
Different roof pitches serve different purposes:
- Low Slope (2:12 to 4:12): Modern designs, requires special materials
- Medium Slope (4:12 to 9:12): Most common, works with all materials
- Steep Slope (9:12+): Traditional look, excellent water drainage
- Flat Roof (0:12 to 2:12): Commercial buildings, requires careful waterproofing
