Ridge Height Calculator

Calculate the ridge height of a roof by inputting the rise and run. This helps in planning roof construction and determining the slope.

Input Parameters

Calculation Results

Calculation Formula

Ridge Height = √(Rise² + Run²)

Where:
Rise = Vertical height of the roof
Run = Horizontal distance of the roof
Ridge Height = Hypotenuse of the right triangle formed by rise and run

Ridge Height Calculator Usage Guide

Learn how to use the Ridge Height Calculator and understand its working principles

How to Use the Calculator

  1. Enter the vertical rise of your roof in feet in the "Rise" field.
  2. Enter the horizontal run of your roof in feet in the "Run" field.
  3. Click the "Calculate" button to compute the ridge height and roof angle.
  4. The results will be displayed in the corresponding fields.

Understanding the Results

The calculator provides two key outputs:

  • Ridge Height: The length of the roof's ridge from the base to the peak, calculated using the Pythagorean theorem.
  • Roof Angle: The angle of the roof in degrees, calculated using the arctangent of the rise over run.

Principle Behind the Calculation

The ridge height is calculated as the hypotenuse of a right triangle formed by the rise and run of the roof. This follows the Pythagorean theorem:

Ridge Height = √(Rise² + Run²)

The roof angle is calculated using the arctangent function, which gives the angle whose tangent is the ratio of the rise to the run:

Roof Angle = atan(Rise / Run) * (180 / π)

This calculator is particularly useful for roofers, builders, and DIY enthusiasts who need to plan roof construction or determine the slope for proper drainage and aesthetics.