ToolsMining & QuarryingAggregate Processing

Silo Capacity Calculator

Calculate silo storage volume and material capacity from cylinder and hopper cone dimensions with bulk density.

Last updated 21 July 2026

About this tool

Calculate silo storage volume and material capacity from cylinder and hopper cone dimensions. Enter diameter, cylinder height, optional cone height, and bulk density to get total volume in m³ and capacity in tonnes.

How to use this tool

Enter silo diameter, cylinder height, optional cone height, and bulk density

Technical information

Cylinder: V = πr²h. Cone: V = ⅓πr²h. Total = cylinder + cone.

Limitations

Assumes full fill. Actual usable capacity depends on discharge angle, rat-holing, and dead storage in the cone.

Revision history

21 July 2026: Initial release

Disclaimer

This tool is provided for educational and general information purposes only. It is not a substitute for professional engineering advice, design or verification.

Diggy and its contributors are not licensed engineering consultants and no results generated by this tool should be used directly for construction, design or safety-critical decisions.

All values and outputs are based on published empirical correlations and should be independently checked and confirmed by a qualified geotechnical engineer before use.

By using this tool, you accept full responsibility for how you interpret and apply the information provided.

Spotted an error? Let us know.

Silo diameter (m)

Cylinder height (m)

Hopper cone height (m) — optional

Bulk density (t/m³)

Typical: sand 1.5-1.7, gravel 1.6-1.8, cement 1.5, aggregate 1.6-1.8

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