Roof Slope Chart And How to Use it – Roof pitch chart

We will teach you how to use a rroof pitch chart

“>oof pitch chart. For many home owners, the roof is a hugely important feature of the home and is the key section of the home which is seen from the exterior. Given that roofs are normally spotted from a distance, long before any windows and doors, they will be a large determining factor as to what someone will think of when they look at your property.


Whether you are trying to sell the property or just make it look the best that it can, getting the roof right is absolutely vital.

One of the most important aspects of trying to get the roof right, though, is the pitch.

Understanding a roof’s pitching can be quite tough if you are just getting started, and working with a roofer can leave you a little bit unsure about what is being suggested with regard to the job – there’s so much to learn that it can become a bit baffling.

The roof pitching is essentially how steep the roof is going to be – they are either going to be “flat” or “pitched.”

In this instance, we want to take a look at how this can be changed and improved with the help of a roof pitch chart.

These charts come in many various names and forms, and we will look at how you can use a roof pitch conversion chart to learn about the most effective balance for your home with regard to getting the roof design right.


In essence, a roof pitch chart is provided as a rough guide – usually by a roofing company – to help you see what the average roof pitches tend to be. Usually, they come in the form of a roof pitch diagram chart, but other times it will be presented to you in a conversion format.

There are many tools out there that allow you to complete your own calculations, too, but the most effective way of managing this situation is to use a roof pitch conversion chart.

Without an intricate knowledge of the measurements that you are using, a roof pitch conversion tool can be a little bit too complicated to give you the accuracy needed.


Roof pitch conversion charts are very useful for one thing – they give you all the information that you need to provide to the professionals.

If you can give them the exact chart and measurement that you like the look of, they can work to those specifications. The charts are there to provide people with an idea of what the actual slope will look like on the roof, and for many people the steeper looks tend to be the most favored.

This is because steeper looks tend to fit more with the “Golden Ratio” which all architects work by. A ratio of 1:1:62 is known as the “Golden Ratio” and therefore the vast majority of roof pitch in degrees charts you see will be working to this ratio, at the very least.

Therefore, you can feel quite comfortable in working with someone who can provide you with a roof pitch conversion chart, given that they will be adhering to the professional standards thanks to the implementation of the “Golden Ratio” in nearly all roofing projects today.

Roof Pitch Angle Roof Pitch Multiplier
1/12 4.76° 1.0035
2/12 9.46° 1.0138
3/12 14.04° 1.0308
4/12 18.43° 1.0541
5/12 22.62° 1.0833
6/12 26.57° 1.1180
7/12 30.26° 1.1577
8/12 33.69° 1.2019
9/12 36.37° 1.2500
10/12 39.81° 1.3017
11/12 42.51° 1.3566
12/12 45.00° 1.4142



The first thing that you need to understand before picking any selections from a roof pitch multiplier chart is to ensure that it’s affordable. Typically, the steeper the roof is, the higher the price will be.

Make sure that this is going to be affordable for you, as more materials and time are needed to construct steeper roofs. It also has to fit in with the nearby households, and picking a choice from any roof pitch to degrees chart can be difficult if you are surrounded by a very specific style of housing.

Not only will having a totally different roof from all the others look rather strange, but it will make it very easy for you to run into some form of planning problems along the way thanks to this.

Therefore, it’s important to understand the roof pitch chart process completely. The horizontal measurement – or roof run – and the vertical measurement – the roof rise – are the most important factors to get right when making the roof pitch calculations that you need to make.

It also helps to know the exact measurements of your roof before you start the process of calculating and converting, to ensure accuracy.


Finding the calculations needed to take things a step further with the roof conversion or development is going to take a lot of time, and you need to have access to the best charts and software possible.

Typically, local roofing companies will have access to this information directly on their websites – failing that, you can find helpful information from here regarding what typical roof pitches will be in degrees.

Likewise, you will find that conversion tools are hugely useful for the same reason; although you need to have the information and the measurements on-hand to put them in.

If you can get these details it can save you a lot of time estimating and trying to compare things on a screen. Using a roof slope conversion chart will be useful in terms of helping you take things a step forward; however, if you already know what kind of roof style you want, this can give you the access needed to the measurements that you want to work with.

Whatever you decide to go with, though, finding the best roof pitch chart is going to be very important. Working with a local roofer is going to be your best chance of finding this information, including arranging the work to be carried out.

Founder & Editor

Hi, I’m Jim. I was a roofing constructor for 20 years, before deciding to start and gather the best content about roofing. I love woodworking and construction and it was only natural for me to start this passion project of mine. Thank you for visitng.