Angle of Repose Calculator

Calculate Angle of Repose



Formula

The formula to calculate the Angle of Repose (a) is:

\[ a = \tan^{-1} \left( \frac{h}{r} \right) \]

Where:

What is Angle of Repose?

An angle of repose is a measure of the flowability of bulk solids such as powders. It is the angle that the surface of a pile of bulk material makes with the horizontal ground when the material is at rest.

Example Calculation

Consider an example where:

Using the formula to calculate the Angle of Repose:

\[ a = \tan^{-1} \left( \frac{2}{3} \right) \approx 33.69 \text{ degrees} \]

This means that the angle of repose for this example is approximately 33.69 degrees.