Bulk Density Index

Estimated bulk densities for 600+ common bulk solids: grouped by material with variants nested, searchable (lb/ft³ and kg/m³).

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Reference tool only. Not engineering for construction or purchase. Verify with the supplying vendor before any commitment. Terms of Use
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How to read this: materials are grouped by base type: the native material sits on the heading line, with its variants indented below. Values are lb/ft³ / kg/m³. Loose (poured / aerated) and Packed (tapped / settled) appear only where a source distinguishes them. Where it does not, the figure sits under State not stated by source and is not presented as either, because loose against packed is what sizes a hopper, a silo and a rotary valve. A single unlabeled number cannot do that work. Entries show only where we have that breakdown.

MaterialLoose
poured / aerated
Packed
tapped / settled
State not stated by source
lb/ft³ / kg/m³
Estimate & reference only. Bulk density varies significantly with grade, particle size, moisture, aeration and handling: specific suppliers and environments will alter the real value. Consult GQI to test your specific material.
Reference & estimation tool. Results are approximate and must be confirmed by a GQI specialist before design, selection or purchase. Brand & standard names are for reference only. © 2026 Grand Quest Industries LLC.

About this tool

Bulk densities for more than 550 common bulk solids, searchable, in lb/ft³ and kg/m³, with loose and packed separated where a source distinguishes them and left unlabeled where it does not. ‡ marks a row where two figures disagree; both are kept and neither is preferred. A range is the published span. Bulk density varies with moisture, particle size and compaction, and published figures for the same material differ between sources. Use these values for early sizing and comparison; size equipment against your material's measured density.

Sources: compiled from published bulk density references, including the Anval Valves bulk density chart and the CEMA (Conveyor Equipment Manufacturers Association) material tables, and from GQI working figures. Bulk density varies with particle size, moisture and handling. Values are for reference only; see the Terms of Use.

Estimates & reference only: provided without warranty; results must be confirmed by a GQI specialist. See Terms of Use and our Privacy Policy.
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