Roof Pitch Calculator -

Related Construction Calculators

What is a Roof Pitch Calculator?

A Roof Pitch Calculator determines the slope or pitch of a roof based on its rise (vertical height) and run (horizontal distance), expressed as a ratio (e.g., 4:12) or angle in degrees.

Roof pitch is critical for drainage, material selection, and structural design in construction. This calculator simplifies the process by converting measurements into standard pitch formats used in roofing.

Low Pitch vs. Medium Pitch vs. Steep Pitch

Pitch Type	Ratio	Angle (Degrees)	Use
Low Pitch	2:12 to 4:12	9.5° to 18.4°	Commercial, flat roofs
Medium Pitch	4:12 to 8:12	18.4° to 33.7°	Residential, standard roofs
Steep Pitch	8:12 to 12:12	33.7° to 45°	High-snow areas, aesthetic

How to Use the Roof Pitch Calculator

Rise: Enter the vertical rise of the roof (e.g., height from base to peak).
Run: Input the horizontal run of the roof (e.g., distance from the edge to the centerline).
Unit: Choose the unit of measurement (feet or meters).
Calculate: Determine the roof pitch as a ratio (e.g., 4:12) and angle in degrees.

Frequently Asked Questions (FAQ)

What is a standard roof pitch?

A standard roof pitch for residential homes is typically 4:12 to 6:12, balancing drainage and material efficiency.

Does the calculator account for complex roof shapes?

This calculator assumes a simple gable roof. For complex roofs, measure each section separately and calculate individually.