
Conversion Formula for Standard Roof Pitch to Degrees
- To convert a roof slope expressed as “X-in-12″ to a roof slope expressed in degrees, find the arctangent of (rise/run).
- Divide the rise (that’s the “X”, yours will vary) by the run (always 12).
- Using a scientific calculator, find the arctangent of the result.
- To convert a roof slope expressed as “X-in-12″ to a roof slope expressed in degrees, find the arctangent of (rise/run).
- Divide the rise (that's the “X”, yours will vary) by the run (always 12).
- Using a scientific calculator, find the arctangent of the result.
What is 4 12 pitch in degrees?
First enter the number you got from dividing your rise by your run (0.791667 in the following example). Then click the “ atan ” button, and then the “ = ” button. This will give you the arctangent of (rise/run). Example: For a slope of 9½-in-12. Convert 9½ to 9.5. Divide 9.5 by 12 (rise/run is 9.5/12) to get 0.791667.
What pitch is 22.5 degrees?
To find the angle of a roof in degrees convert the pitch to a slope, then convert to degrees by finding the arc tangent of the slope. First, convert the pitch to a slope. To do this simply convert the rise and run as a fraction to a decimal form, eg. rise/run = rise ÷ run = slope.
What is 6 12 roof pitch in degrees?
How to Convert Roof Pitch to Degrees. To find the angle of a roof in degrees, convert the pitch to a slope, then convert to degrees by finding the slope’s inverse tangent, or arctangent. First, convert the pitch to a slope. To do this, simply convert the rise and run as a fraction to a decimal form, e.g. rise/run = rise ÷ run = slope.
How to convert taper to degrees?
Angle Scale. 18.43°. 4 : 12. Visit this page on your Phone to directly measure pitch and angles. With a mobile device, a button will appear. Tap the button to start measuring and lay your device on an angle (roof) to measure pitch and angle and animate the diagram. While measuring, tap to hear the spoken angle continuously as it changes.

How do you calculate pitch degree?
- First, you need to measure the run of your roof. ...
- Next, you need to figure out the rise. ...
- Now, divide the rise by the run. ...
- Then, divide 1 by your tangent.
- Finally, multiply this result by 180/π and you've calculated your roof pitch!
What is a 22.5 degree pitch?
What degree is a 12 pitch?
What is a 5% pitch?
What roof pitch is 20 degrees?
Convert Roof Slope from Degrees to Rise in Run | |
---|---|
18° | 3.899 in 12 |
19° | 4.132 in 12 |
20° | 4.368 in 12 |
21° | 4.606 in 12 |
What pitch is 45 degrees?
What is a 712 pitch?
How do you calculate the length of a rafter pitch?
What is a 4x12 pitch?
How many degrees is a 6 12 roof pitch?
How many degrees is a 2 12 pitch?
Roof Pitch Degree Table | |
---|---|
1-12 | 4.76° |
2-12 | 9.46° |
3-12 | 14.04° |
4-12 | 18.43° |
Is a 5/12 roof pitch steep?
Getting Initial Pitch
What you need to do is find the peak of your section of roof, from the side, on a ladder. Line up the level so that the 12 on one end lines up with the peak. Note the other number (it will be vertical) where the line of the roof intersects.
A Little Demystification
With concepts like this, it’s generally better to focus mainly on how to get the numbers you need, and not on why the calculations work, or why units are what they are. These are interesting things, and it doesn’t hurt to investigate them later, but it merely adds complication when you need to practically solve a problem in quick order.
Calculating Degree
Now that we have our ratio, we have to use trigonometry, to determine the angle. This is remarkably easy with the use of a scientific calculator. In this example, we’ll assume Windows’ calculator.
What is roof pitch?
Homes and other buildings have roofs with slopes ranging from no slope or flat to very steep slopes. Roof pitch describes the slope, or angle, of the roof. Knowing roof’s pitch is essential in determining the appropriate installation method and how much roofing material you’ll need.
How to find the angle of a roof?
To find the angle of a roof in degrees, convert the pitch to a slope, then convert to degrees by finding the slope’s inverse tangent, or arctangent. First, convert the pitch to a slope. To do this, simply convert the rise and run as a fraction to a decimal form, e.g. rise/run = rise ÷ run = slope. For a pitch expressed in inches per foot, convert ...
