Roof Pitch to Angle
Roof Pitch is a term describing how steep or flat your roof slope is. The combination of two numbers are used to display or show the roof pitch.
Plan and construction of shelters will bless many items, but one of the most popular items is the weather state of your surrounding areas, town, and nation.
Pitch roof angle will be the angle created between the roof rafter and the horizontal run or the quantity of rise made by the rafter, which will incline to a parallel run to form the roof’s pitch.
Generally, the roof pitch angle is a radius between 18 degrees to 37 degrees for standard pitch.
The area with rainstorm and snowfall need a good pitch for the roof based on the slope of the top and layout; depending on the slope of the roof, it will classify into two types uniform roof and sloping roof.
These are two types of roof designs based on slop.
A flat roof is the type of roof in which the slope usually is less than 10 degrees, which only ensures adequate rainwater pump in lower to familiar rainfall places.
A pitched roof comprises a sloping floor with an angle of over 20 degrees; usually, it slopes downward in one, two, or more parts depending on the structure and house.
In this article, you learn about roof pitch to angle, pitch roof angle, and angle to roof pitch discussion.
If the rising roof will calculate a fraction drop in the range 4/12 9/12 slope, calculate the proportion of the field of 4:12 9:12 slope, measured in ratio of the area 25% 75%, and calculate the degree in the field of 18 degrees to 37 degrees.
Pitch for the roof, or slope means how many inches height the roof upright rises for every 12 sizes or 1 foot in a parallel distance run.
An example of a pitch for a roof would be a 5/12 or ”5 in 12” slope means that the roof upright rises 5 inches for every 1 foot or 12 heights of parallel distance run.
There are two recommended ways to calculate a roof pitch or ratio in degrees. Let us know about some explanation or rafter, rise, and run, which help in better recognizing while measuring the slope of a roof.
Rise is explained as the good change in height per unit of parallel length or run. For example, a pitch of 4/12 represents 4” good height or rise for every 1 foot or 12 inches of similar space or run.
The general rise value for the pitched roof is a radius between 4” to 9” for every 12 inches of run.
These are good and standard heights of hill usually used for conventional design such as a garage, residential building, shed, etc.
Run will explain the space from the exterior of the top wall plate to a point right under the center of the beat.
It is a parallel distance for pitch and rafter design used as part of the roof or moment of top to the outside wall plate.
It can explain as a design component of a pitched roof inclined to parallel run by a certain angle in degrees.
Roof Pitch to Angle Degree Chart
Roof pitch is a term that defines how steep or uniforms your roof slope is. The mix of two numbers will use to show the roof pitch.
Two most general methods (4/12 or 4; 12) are used to point the pitch of a roof. On blueprints, architects & builders generally display the pitch of a shelter in the pattern shown.
on the profile where the number (4) performs a rise, and the number (12) represents a length. It means if a roof is 4′ in the size of 12′, your roof pitch would be 4/12 or 18.43 degrees.
Roof Pitch and Corresponding Angles
Roof pitch (slope) 
Roof Angle(degree)

1:12 pitch  4.76° 
2:12 pitch  9.46° 
3:12 pitch  14.04° 
4:12 pitch  18.43° 
5:12 pitch  22.62° 
6:12 pitch  26.57° 
7:12 pitch  30.26° 
8:12 pitch  33.69° 
9:12 pitch  36.87° 
10:12 pitch  39.81° 
11:12 pitch  42.51° 
12:12 pitch  45.00° 
13:12 pitch  47.29° 
14:12 pitch  49.4° 
15:12 pitch  51.34° 
16:12 pitch  53.13° 
Slope Factor Chart 1:12 Pitch 6:12 Pitch
Valley & Hip factor 
1.4167  1.424  1.4362  1.453  1.4743  1.5 
pitch of roof  1:12  2:12  3:12  4:12  5:12  6:12 
Slope factor  1.118  1.118  1.118  1.118  1.118  1.118 
Slope Factor Chart7:12 Pitch12:12 Pitch
Slope Factor 
1.1577  1.2019  1.25  1.3017  1.3566  1.4142 
valley & Hip factor 
1.5298  1.5635  1.6008  1.6415  1.6853  1.732 
Roof PitchToAngle Converter
The following table shows the degree parallel for all roof slopes’ quality pitch from 1/sin 12 to 361/2in12.
To see the percent parallel for quality riseinrun roof pitches, visit our page for three ways of indicating roof slop.
That page also describes the math that allows you to convert any roof slope show in any way to any other way.
Pitch to degrees, parallel to degrees, degrees to percentage, etc. this will help you find the conversion quality for any slope not listed.
Conversion formula for standard roof pitch to degrees
That is how you convert a slope shown in quality roof pitch (even a hill that includes a fraction) to degrees:
 To alter a roof slope shown as “Xin12” to a roof slope expressed in degrees, find the arctangent of (rise/run).
 Cut up the rise (that’s the “X,” your “X” will divide according to how steep the roof is) by the run (the run is every time 12).
 Using a scientific calculator, find the arctangent of the solution.
There’s a good calculator here at web2.0cals.com. Click the “2nd” hook (top left of the calculator pitch.
First, enter the number you got from dropping your rise by your run (0.791667 in the following example).
Then click the “at a” hook and then the = button. It will give you the arctangent of (rise/run).
There’s a good calculator here at web2.0cals.com. Click the “2nd” hook (top left of the calculator pitch.
First, enter the number you got from dropping your rise by your run (0.791667 in the following example).
Then click the “at a” hook and then the = button. It will give you the arctangent of (rise/run).
Roof Pitch to Degrees Conversion.
12/13  450° 
12.5/12  46.17° 
13/12  47.29° 
13.5/12  48.37° 
14/12  49.4° 
14.5/12  50.39° 
15/12  51.25° 
15.5/12  52.25° 
16/12  53.13° 
16.5/12  53.97° 
17/12  54.78° 
17.5/12  55.56° 
18/12  56.31° 
18.5/12  57.03° 
19/12  57.72° 
19.5/12  58.39° 
20/12  59.04° 
20.5/12  59.66° 
21/12  60.26° 
21.5/12  60.83° 
22/12  61.39° 
22.5/12  61.93° 
23/12  62.45° 
23.5/12  62.95° 
24/12  63.43° 
24.5/12  63.9° 
25/12  64.63° 
25.5/12  64.8° 
26/12  65.22° 
26.5/12  65.64° 
27/12  66.04° 
27.5/12  66.43° 
28/12  66.80° 
28.5/12  67.17o 
29/12  67.52° 
29.5/12  67.86° 
30/12  68.2° 
30.5/12  68.52° 
31/12  68.84° 
31.5/12  69.15° 
32/12  69.44° 
32.5/12  69.73° 
33/12  70.02° 
33.5/12  70.29° 
34/12  70.56° 
34.5/12  70.82° 
35/12  71.08° 
35.5/12  71.32° 
36/12  71.57° 
36.5/12  71.80° 
The following table displays the roof pitch (riseinrun) parallel for all roof slopes in degrees from 1o to 72o.
Other than the 45o roof slope, which is 12in12, none of the quality roof pitches (5in12, 6in12, etc.) is uniform to a full degree.
The conversion formula for degrees to standard roof pitch
is how you convert a slope shown in degrees (even a hill that covers a portion of a degree) to deliver roof pitch.
 He fined the supplement of the degree value.
 Increase the tangent by the run (which is by convention all the time 12.)
 That gives you the leap. Put the sensibly as riseinrun.
 Table 2: slopes in degrees converted to standard roof pitch
If you’re definitely what the slope of your roof is and want to control that in or degrees either riseinrun, we approve this slope finder on amazon. It was very cheap and very correct.
If you’re using this list, you can view into getting yourself a building calculator.
Convert roof slop From degrees To standard roof pitch  
Roof angle In degrees  Roof slope as Rise in run (x in 12) 
1°  0.209 in 12 
2°  0.419 in 12 
3°  0.629 in 12 
4°  0.839 in 12 
5°  1.050 in 12 
6°  1.261 in 12 
7°  1.473 in 12 
8°  1.687 in 12 
9°  1.901 in 12 
10°  2.116 in 12 
11°  2.333 in 12 
12°  2.551 in 12 
13°  2.770 in 12 
14°  2.991 in 12 
15°  3.215 in 12 
16°  3.441 in 12 
17°  3.669 in 12 
18°  3.899 in 12 
19°  4.132 in 12 
20°  4.368 in 12 
21°  4.606 in 12 
22°  4.848 in 12 
23°  5.094 in 12 
23°  5.343 in 12 
24°  5.596 in 12 
25°  5.853 in 12 
26°  6.114 in 12 
27°  6.381 in 12 
28°  6.652 in 12 
29°  6.928 in 12 
30°  7.210 in 12 
31°  7.498 in 12 
33°  7.793 in 12 
34°  8.094 in 12 
35°  8.403 in 12 
36°  8.719 in 12 
37°  9.043 in 12 
38°  9.375 in 12 
39°  9.717 in 12 
40°  10.069 in 12 
41°  10.431 in 12 
42°  10.805 in 12 
43°  11.190 in 12 
44°  11.588 in 12 
45°  12.000 in 12 
46°  12.426 in 12 
47°  12.868 in 12 
48°  13.327 in 12 
49°  13.804 in 12 
50°  14.301 in 12 
51°  14.819 in 12 
52°  15.359 in 12 
53°  15.925 in 12 
54°  16.517 in 12 
55°  17.138 in 12 
56°  17.791 in 12 
57°  18.478 in 12 
58°  19.204 in 12 
59°  19.971 in 12 
60°  20.785 in 12 
61°  21.649 in 12 
62°  22.569 in 12 
63°  23.551 in 12 
64°  24.604 in 12 
65°  25.734 in 12 
66°  26.952 in 12 
67°  28.270 in 12 
68°  29.701 in 12 
69°  31.261 in 12 
70°  32.970 in 12 
71°  34.851 in 12 
72°  36.932 in 12 
What Roof Pitch Is 30 Degrees?
A 30° roof pitch is roughly the same as a 7/12 roof pitch.
What Is the Angle of a 5 12 Pitch Roof?
A roof pitch of fraction 5/12 (5 over 12, 5 on 12 or “5 in 12” slope, or in ratio 5:12) is equal to 22.62 degrees of angle.
What Is the Angle of a 3 12 Pitch Roof?
about 14°
A 3/12 roof pitch angle is about 14°, so on and so forth.
What Roof Pitch Is 45 Degrees?
Roofs with a pitch of 12/12 are approximately 45 degrees, depending on how exactly you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
What Is the Angle of a 10 12 Pitch Roof?
Roofs with a pitch of 10/12 are approximately 39.81 degrees, depending on how exactly you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
What Pitch Is a 45 Degree Roof?
Roofs with a pitch of 12/12 are approximately 45 degrees, depending on how exactly you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
What Is the Angle of a 7 12 Pitch Roof?
pitch to degrees; a 7:12 pitch equals 30.26 degrees.
What Is the Minimum Angle for a Pitched Roof?
Traditionally, a minimum pitch of 20° was recommended, but modern roofing products have made it possible to create equally performing roofs with angles as low as 12.5°. Anything less than 12.5° is considered a flat roof.
What Is the Angle on a 4 12 Pitch Roof?
about 18.4°
So, the 4/12 roof pitch angle is about 18.4°.
What Is a 6 12 Pitch in Degrees?
When you are talking about roof pitches, the first number is the number of inches the roof rises every 12 inches. The angle on a 6/12 roof is 26.57 degrees.
What Degree Is an 8 12 Pitch Roof?
A roof pitch of fraction 8/12 (8 over 12, 8 on 12 or “8 in 12” slope, or in ratio 8:12) is equal to 33.69 in degrees of angle.
What Is the Angle of a 8 12 Pitch Roof?
33.69°
For tile, shingle, slate, and metal roofing.
What Pitch Is a 30 Degree Roof?
A 30° roof pitch is roughly the same as a 7/12 roof pitch.
What Pitch Is 20 Degree Roof?
Traditionally, a minimum pitch of 20° was recommended, but modern roofing products have made it possible to create equally performing roofs with angles as low as 12.5°. Anything less than 12.5° is considered a flat roof.
What Angle Is 5 12 Pitch Roof?
A roof pitch of fraction 5/12 (5 over 12, 5 on 12 or “5 in 12” slope, or in ratio 5:12) is equal to 22.62 degrees of angle.
What Roof Pitch Is 35 Degrees?
tan of 35 degrees as tan 35° = 0.7, this will give you the pitch of the roof.
What Is a 10 Degree Roof Pitch?
A pitch of 9 or 10/12 and up is considered relatively steep, but some get into the high teens and low twenties, or exceedingly steep. Once the pitch is determined, the pros of steep and lowslope roofs can be discussed.
What Is a 4 12 Roof Pitch in Degrees?
about 18.4°
So, the 4/12 roof pitch angle is about 18.4°.
What Angle Is a 12 12 Pitch Roof?
Roofs with a pitch of 12/12 are approximately 45 degrees, depending on how exact you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
What Angle Is a 8 12 Pitch Roof?
33.69°
For tile, shingle, slate, and metal roofing.
What Is a 12 Pitch Roof?
Roof pitch (or slope) tells you how many inches the roof rises for every 12 inches in depth. An Example of a roof pitch would be a “6/12 pitch” which means that the roof rises 6 ” for every 12″ inward towards the peak (or ridge).
What Is a 5 Degree Roof Pitch?
5 on 12 roof pitch. The 5/12 or 5 on 12 roof pitch are most common types of residential roof pitch which are a sloping surface with an angle of usually 22.62° degrees steepness of a roof with its vertical rise of 5 inches over its 12″ or 1foot horizontal distance or run in building construction.
What Is Roof Pitch Angle?
Roof pitch is the angle that is created as the rafter leaves the ceiling joist. It can also be represented as the proportion between the rise and the run of the roof (for example for every 1 meter in width, the roof rises 1 meter in height – or otherwise known as 45 degrees).
What Degrees Is a 4 12 Pitch Roof?
A roof pitch of fraction 4/12 (4 over 12, 4 on 12 or “4 in 12” slope, or in ratio 4:12) is equal to 18.43 in degrees of angle.
What Degree Is a 10 12 Pitch Roof?
Roofs with a pitch of 10/12 are approximately 39.81 degrees, depending on how exactly you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
What Is the Pitch of a 45 Degree Roof?
Roofs with a pitch of 12/12 are approximately 45 degrees, depending on how exact you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.
What Is the Best Angle for a Roof?
Resilience to Wind: Research suggests that a 30 percent roof pitch offers optimal resistance and durability in high winds. Roof Lifespan: Higherpitched roofs slough off rain, snow, leaf debris from trees, and other materials that can degrade the roof’s integrity.
Which Roof Pitch Is Best?
4/12 is quite typical. Anything under 3/12 is a lowpitch roof. Anything above 6/12 is a steep roof pitch since it becomes harder to walk on the roof. It’s pretty easy, to be honest.
What Roof Pitch Is a 45 Degree Angle?
12/12
Roofs with a pitch of 12/12 are approximately 45 degrees.
What Degree Angle Is a 4 12 Pitch Roof?
approximately 18.4 degrees
Roofs with a pitch of 4/12 are approximately 18.4 degrees, depending on how exact you’d like to be in your measurement. Check out our roof angle chart for more examples of the exact angles (expressed in degrees) of common roof pitches.