Grain Bin Volume

Calculate the storage capacity of cylindrical grain bins with conical roofs.

Bin Dimensions

Diameter

Unit

Wall Height

Vertical height from floor to eave.

Roof Peak Height

Vertical height from eave to peak.

Storage capacity

Enter dimensions

Overview

This calculator determines bin capacity by combining cylinder and cone geometry. Accuracy depends on the grain's test weight and natural compaction.

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Pro Tips

Leveling: Grain naturally forms a cone; 'peaking' the bin increases storage beyond the eave line.
Compaction: Grain at the bottom of deep bins packs tighter (5-8% more) than grain at the top.
Safety First: Never enter a bin while grain is being loaded or unloaded due to engulfment risks.
Maintenance: Regularly check for leaks and hot spots to preserve grain quality.

Fun Facts

"1 US Bushel (bu) is approximately 1.244 cubic feet. It's a volume, not a weight."
"The term 'Silo' comes from the Greek 'siros', meaning 'pit for holding grain'."
"Grain storage pits have been found dating back 11,000 years to the dawn of agriculture."
"A standard semi-truck holds about 900-1,000 bushels of grain."

Formula: Volume = (π × r² × Wall) + (π × r² × Peak / 3)

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