Angle of Repose Calculator

How do you Calculate Angle of Repose?

Angle of repose can be calculated various ways but with the formula that we employ we only need two variables to get your result. The two variables required are:

1. Height of hill


2. Radius of hill

1. AR = Angle of Repose


2. Height = Hill Height (in meters)


3. Radius = Hill Radius (in meters)

Understanding Your Results

Once you hit calculate you will get a single value returned to you as your answer which is the angle of repose. This value is displayed in degrees by default. You can use the result to then determine if granules would be able to roll down the slope or if they would need to be assisted with agitation or by other means.

How to Use the Angle of Repose Tool

If you are looking for a simple and easy-to-use angle of repose calculator you are in the right place. To use our tool you need to follow the following steps:

1. Enter the total height of the hill or heap, or pile.


2. Enter the radius of said hill, heap, or pile.


3. Ensure the units of measurement for each field is properly set to align with your values.


4. Hit calculate and get your angle of repose in under a second!

Example Calculation

Let's say you want to find the angle of repose for a hill that is 20 feet high and has a radius of 10 feet. You simply will enter 20 into the first field and then 10 into the second radius field. You will not have to change either of the units of measurement since they are in feet by default.

You can now hit calculate to get your answer. In this situation, we find that the angle of repose is 63.435 degrees. If needed, we can change the unit of measurement from degrees to another unit very easily by selecting it from the dropdown menu beside the answer.