# Stockpile Volumes

## Volume of natural stockpiles - cubic feet, yard, metre and decimetre

Volumes of natural stockpiles:

*1 ft*^{3}= 0.02832 m^{3}= 28.32 dm^{3}= 0.03704 yd^{3}*1 ft (foot) = 0.3048 m = 12 in = 0.3333 yd*

### Mass of a Pile

The mass of a pile can be calculated as

*m = ρ V (1)*

*where *

*m = mass (kg, lb)*

*ρ = density of the volume in the pile (kg/m ^{3}, lb/ft^{3})*

*V = stockpiled volume (m ^{3}, ft^{3})*

For density - be aware of the bulking factor for the stockpiled material.

### Example - Stockpiled Anthracite Coal

Anthracite coal with density *65 lb/ft*^{3} is stockpiled in a conical pile with diameter *30 ft* and height *8 ft*.

According the diagram above the volume of the pile is approximately *2000 ft ^{3}*.

The total mass of the pile can be calculated as

*w = ( 65 lb/ft^{3}) (2000 ft^{3}) *

* = 130000 lb*

### Calculator - Volume of a Coned Pile

The calculator below can be used to calculate volume and mass of a coned pile.

### Calculator - Volume of a Rectangular Pile

The calculator below can be used to calculate volume and mass of a rectangular pile.

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