How to Calculate Stockpile Volume
Stockpile volume is one of the most common measurements on mining, quarry and construction sites, and one of the most valuable to get right. Here is how it is calculated and what drives the accuracy.
Volume above a base
A stockpile volume is the amount of material sitting above a reference base — the toe of the pile. Capture the pile surface, define the base it sits on, and the volume is the space between them.
The pile surface usually comes from a drone or LiDAR survey; the base is defined from the surrounding ground or a fitted plane.
Why the base definition matters
Most of the error in a stockpile volume comes from how the base is defined. A pile on flat, hard ground is straightforward; a pile against a wall, on a slope, or on soft ground needs a base that reflects reality.
Good software offers several reference modes for the base so you can match the actual toe of the pile.
From volume to tonnage
Volume alone is rarely the final answer. Multiplying volume by the material's density converts it to tonnage, which is what inventory and reconciliation reports use. Because density varies by material and compaction, it should be set deliberately.
Measure stockpile volume and tonnage in STREAM
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