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Roof Pitch Calculator

Roof Pitch Calculator
Rise (inches):    
Run (inches):    

A roof pitch is the angle or slope of a roof. It is usually expressed as the ratio of the rise to the run in the form of x:12, where x is the number of inches of vertical rise for every 12 inches of horizontal run. A steeper roof pitch means better water drainage, but also means higher construction and maintenance costs.

How to use the Roof Pitch Calculator?

Our Roof Pitch Calculator is a handy tool that can help you quickly determine the pitch of any roof. To use it, simply enter the rise and run values of the roof in question and click on the “Calculate” button. The calculator will then provide you with the roof pitch in the form of x:12.

Using a Roof Pitch Calculator can save you time and money by helping you accurately determine the pitch of a roof. This information is essential for designing and building a roof that is both structurally sound and able to withstand the elements.


How Do I Calculate the Pitch of a Roof?

You can calculate the pitch of a roof by dividing the rise of the roof by the span. The pitch is expressed as a ratio of rise to span, or as a degree measurement. You can use a roof pitch calculator to make this calculation easier.

What Is a 4.5 Roof Pitch?

A 4.5 roof pitch is a roof with a 4.5-inch rise for every 12 inches of run. This translates to a pitch of approximately 18.43 degrees.

What Pitch Is 30 Degrees?

A pitch of 30 degrees is equivalent to a 7/12 roof pitch. This means that for every 12 inches of horizontal run, the roof rises 7 inches vertically.

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John Doe

I am John Doe, a licensed civil engineer and concrete expert. I received my degree in Civil Engineering from Washington State University and have been working in the field for 15 years. Based in Seattle, WA, I specialize in concrete projects and calculations. I have a passion for sharing my knowledge and experience through my website concrete-