Pitch Calculator
Calculate the pitch (slope) of a roof or any inclined surface in degrees, percentage, or ratio.
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isCalculator Editorial Team
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How to use this tool?
How to Use the Pitch Calculator
- Enter the Rise — the vertical height (e.g., 6 inches, 2 meters). Use any unit, but keep it consistent with the run.
- Enter the Run — the horizontal length (e.g., 12 inches, 4 meters). Must use the same unit as the rise.
- Click "Calculate Pitch" — the form validates your inputs (must be positive numbers).
- Read the results:
- Angle — the pitch in degrees (e.g., 26.57°).
- Percentage — the slope as a percentage (e.g., 50%).
- Ratio — the rise-to-run ratio (e.g., 6:12).
Tip: Works with any unit (inches, cm, feet) as long as both inputs use the same unit. No need to convert.
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Frequently Asked Questions
Pitch is the slope of a roof or surface, typically expressed as a ratio of rise over run.
Pitch angle in degrees is calculated by taking the arctangent of rise divided by run.
Use any consistent unit (e.g., inches, feet, meters) for both rise and run.