Brazos Valley Roof Pitch Calculator
Roof Pitch Calculator
Enter the rise and run measurements of your roof to calculate the pitch and angle.
Roof Pitch:
Roof Angle:
How to Measure Rise and Run:
Rise: Measure the vertical distance from the roof's surface at one point to the roof's surface directly above it. If you have access to the attic, you can measure the vertical distance from the top of the ceiling joist to the top of the rafter. Otherwise, you may need to measure from the outside of the building.
Run: Measure the horizontal distance corresponding to the rise measurement. This is the distance along a level plane between the two points where you measured the rise. It is important that the run measurement is directly horizontal.
Safety First: If you are not comfortable measuring your roof, please consult a professional roofer. Never climb on a roof that you do not feel comfortable measuring your roof.
Simplified Roof Pitch Calculation
There's an even easier way to determine roof pitch using a level. Here's how:
- Place one end of a level (e.g., a 2-foot level) flat against the roof surface.
- Raise the other end of the level until it's perfectly horizontal (level).
- Measure the vertical distance from the roof surface to the bottom edge of the level.
- Divide the measured distance by the length of the level you used (divide by 2 for a 2-foot level).
- The result is your roof pitch, commonly expressed as "rise on 12" (e.g., "4 on 12").
This method provides a quick and practical way to determine roof pitch, especially when direct rise and run measurements are challenging.
Roof pitch is represented as a ratio of rise over run, such as 4/12 or 6/12. This means that for every 12 inches of horizontal run, the roof rises 4 inches or 6 inches, respectively. While there are many different rise and run measurements that can result in the same pitch, some common pitches include:
| Pitch | Rise (Inches) | Run (Inches) |
|---|---|---|
| 4/12 | 4 | 12 |
| 6/12 | 6 | 12 |
| 8/12 | 8 | 12 |
| 12/12 | 12 | 12 |
Use our calculator above to determine the exact pitch of the roof you are working on.
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Read what our satisfied clients have to say about our exceptional roofing services.
Great at communicating throughout the process of replacing my roof and answering any questions I had. The crew did a fantastic job. They made sure to cover/protect my AC unit and did a great job cleaning up after the roof was done.
Brittany Sheeler
Homeowner
This company was very professional, from start to finish. We have a home built in the 1940s, which is difficult to work on. They were very honest with us about everything that needed to be replaced & what didn’t. The clean up afterwards was amazing- it looks like no construction ever happened & they went thru our yard with a magnet to be sure that no nails were left.
Amanda Lugar
Homeowner
RocStout roofing did an amazing job on the roof of my former home on Windridge Drive in Bryan, Tx., after a very severe hail storm, and they were so caring and good to me through the whole process, and were very fair with the pricing
Marilyn Thompson
Homeowner
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