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Roof Pitch Calculator

feet
feet
%
Degree

Definition :

  • Roof pitch is the steepness of a roof expressed as rise over horizontal run.
  • A flat roof has zero pitch, while all other roofs are pitched.
  • Pitch is commonly expressed as inches of rise per 12 inches of run.
  • For example, a 6-in-12 roof rises 6 inches for every 12 inches of run.
  • Pitched roofs provide better drainage during heavy rain.
  • They prevent water accumulation and reduce structural stress.
  • Pitched roofs are commonly used in factories, warehouses, and hilly regions.
  • Roof pitch depends on climate, roofing material, and building span.

Uses :

  • Redirects rainwater and snow effectively.
  • Provides protection from environmental elements.
  • Helps in insulation and thermal control.
  • Improves roof durability and lifespan.
  • Supports use of different roofing materials.

Formula :

  • Result = Rise / (Run / 12)
  • Slope (%) = (Rise / Run) × 100
  • Angle (Degree) = tan⁻¹ (Rise / Run)

How to Calculate ?

  • Enter the rise value.
  • Enter the run value.
  • Click “Calculate” to view results.
  • Use “Reset” to clear values.

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