Roof angle calculator

The Roof Angle Calculator is an easy-to-use tool designed to help homeowners, builders, and roofing professionals accurately determine the angle and slope of a roof.

Roof Angle Calculation Method

The calculation method follows standard roofing and construction principles. The roof angle is calculated using trigonometry, where the rise represents the vertical height and the run represents the horizontal distance. The calculator uses the arctangent function to determine the roof angle in degrees.

In addition, the tool calculates the roof pitch, expressed as X/12, and the slope percentage, which is commonly used in engineering and roofing specifications. These combined results help users understand roof geometry, evaluate material suitability, and plan installations or repairs with greater accuracy.