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THE CALCULATORS

Angle of Repose Measurement and Interpretation

Calculate the angle of repose from a conical heap of granular material using base radius and height measurements.

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1. Define Input Parameters

2. Engineering Output

Tangent of angle of repose (tan_alpha)
- dimensionless
Angle of repose in radians (alpha_rad)
- rad
Angle of repose in degrees (alpha_deg)
- °

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Context & Assumptions

The angle of repose is a key indicator of flowability for powders and bulk solids in process engineering. It helps design slopes for hoppers, chutes, and stockpiles while assessing segregation and stability risks during storage and transport.

Understand the Engineering Principles

Review the step-by-step derivations, typical industrial limits, and scale-up rules.

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