Grain Bin Capacity (Bushels)
Cylinder plus cone volume of a round bin in cubic feet and bushels (ft^3 x 0.8036).
Example
You enter
- Bin diameter (ft) 30
- Eave (wall) height (ft) 20
- Peak cone height (ft; 0 for flat) 8
- Grain corn
- Packing factor 1
You get
- Cylinder volume 14137.2
- Cone volume 1884.96
- Total capacity 12875
Details, formula, and sources
Cylinder plus cone volume of a round bin in cubic feet and bushels (ft^3 x 0.8036), and weight by grain test weight (corn / wheat / soybeans / oats). Bin geometry first-principles; USDA FGIS test-weight standards.
Cylinder volume = pi x (d/2)^2 x eave height. Cone volume = (1/3) x pi x (d/2)^2 x peak height. Total ft^3 = (cylinder + cone) x packing factor. Bushels = ft^3 x 0.8036 (1 bushel = 1.2445 ft^3). Weight = bushels x test weight.
Bin geometry first-principles; USDA FGIS (Federal Grain Inspection Service) standard test weights by name.
Free at ams.usda.gov/services/grain-inspection.
Estimate. AHJ and licensed professional govern.
Field names used by the API: diameter_ft, eave_height_ft, peak_height_ft, grain, packing_factor, cylinder_ft3, cone_ft3, total_bushels
- Bushel conversion 1 ft^3 = 0.8036 bushels (1 bushel = 1.2445 ft^3)USDA standard
- Test weights corn 56, wheat 60, soybeans 60, oats 32 lb/bushelUSDA FGIS