🌾 GRAIN BIN CALCULATOR
Crop Type
Bin Shape
Grain Surface
24.0 ft
Moisture & Packing
Cross-Section View
Common Round Bin Capacities (Level Fill)
| ⌀ | 18 ft | 21 ft | 24 ft | 27 ft |
|---|---|---|---|---|
| 18 ft | 3,050 | 3,561 | 4,072 | 4,583 |
| 24 ft | 5,432 | 6,338 | 7,244 | 8,150 |
| 30 ft | 8,488 | 9,903 | 11,317 | 12,732 |
| 36 ft | 12,222 | 14,259 | 16,297 | 18,334 |
| 48 ft | 21,728 | 25,350 | 28,971 | 32,593 |
Bushels at standard moisture, no pack. Rows = diameter, cols = eave height.
RESULTS
Storage Volume
Cylinder Volume --
Peaked Cone--
Total Volume --
Bushels & Weight
Total Bushels --
Weight --
Moisture Shrink
Shrink Factor --
Dry Bushels --
Bushels Lost --
Gross Value (wet) --
Value After Shrink --
Shrink Cost--
Safe Storage Moisture Targets
Corn — 1 year
14%
Corn — long term
13%
Soybeans
13%
Wheat
13.5%
Formulas Used
Angle of repose ≈ 25° for most grains (tan 25° ≈ 0.466). Pack factor accounts for grain settling over time.
Cylinder = π × r² × hCone = ⅓ × π × r² × (r × tan 25°)Shrink % = (Moist In − Std) × 1.3Dry Bu = Wet Bu × (1 − Shrink%)Angle of repose ≈ 25° for most grains (tan 25° ≈ 0.466). Pack factor accounts for grain settling over time.