Pitch Calculator

How to Use the Roof Pitch Calculator

The Roof Pitch Calculator is a handy tool for determining various aspects of a roof’s pitch and dimensions. This quick guide will walk you through using the calculator effectively.

Step 1: Input Your Measurements

To get started, you will need to input some key measurements related to your roof project. Make sure you have these measurements ready before proceeding:

• Run Length (horizontal distance in feet): Enter the horizontal length of the roof. Ensure that this value is between 1 and 100 feet, with possible increments of 0.1 feet.
• Rise (vertical height in feet): Input the vertical height from the base to the peak of the roof. This should be a value between 0.1 and 50 feet, also allowing for 0.1 feet increments.
• Roof Width (feet): Specify the width of the roof. Acceptable values range from 1 to 200 feet with a step size of 0.1 feet.

All fields are required, so be sure to fill them out completely and accurately.

Step 2: Review the Calculated Results

Once you have entered all of the required input measurements, the calculator will automatically compute several important results. Here’s what each output represents:

• Pitch Ratio (Rise:Run): This is the ratio of the rise to the run, expressed in terms of a “Rise in inches per 12 inches of run”. The calculated ratio will be presented in the format “X:12”.
• Pitch Angle (degrees): The calculator will determine the angle of the roof pitch in degrees. This is calculated using the arctangent of the rise divided by the run, multiplied by (180/PI) to convert from radians to degrees.
• Actual Roof Length (feet): You’ll receive the length of the sloped roof, found using the Pythagorean theorem—it calculates the hypotenuse of the triangle formed by the run and rise.
• Roof Surface Area (sq ft): The tool will provide the surface area of the roof. This is calculated by multiplying the actual roof length by the roof width.

Each of these results is formatted to help you display the correct number of decimal places and units, ensuring clarity and precision.

Conclusion

Using the Roof Pitch Calculator is straightforward and invaluable for architects, builders, and DIY homeowners alike. With precise measurements and the automatic calculations provided, you can easily determine the pitch, angle, length, and area of your roofing project, helping to ensure accurate planning and budgeting.