Cylindrical Grain Bin Bushel Capacity (Winchester 1.2445 ft³/bu & Test Weight) Calculator

Compute grain bin cylinder + cone peak capacity in US Winchester bushels (1 bu = 1.24446 ft³).

Total Packed Grain Bin Capacity
22,686.61 bushels
Cylinder Level Bushels (Excl. Cone) 20,808.1 bushels
Peaked Top Cone Bushels 1,878.51 bushels
Bushels per Foot of Cylinder Depth 867 bu/ft
Inputs
⚡ Scenarios:
ft
Grain bin internal diameter in feet.
ft
Level grain fill height at bin wall in feet.
ft
Peaked grain cone height above eave in feet (0 if leveled).
%
Grain settling/packing density factor (typically 5% to 8%).
Results & Graph
Total Packed Grain Bin Capacity
22,686.61 bushels
Cylinder Level Bushels (Excl. Cone)
20,808.1 bushels
Peaked Top Cone Bushels
1,878.51 bushels
Bushels per Foot of Cylinder Depth
867 bu/ft

Total Packed Grain Bin Capacity

Graph 1 • Grain Bin Bushel Capacity • Domain Architecture & Live Telemetry Maps Bin Diameter Feet, Grain Level Eave Height Feet, Angle Of Repose Cone Peak Feet through Grain Bin Bushel Capacity Formula.
Cylindrical Grain Bin Bushel Capacity (Winchester 1.2445 ft³/bu & Test Weight) Calculator • Custom Domain Schematic (Environmental & Agricultural Science) binDiame → grainLevPhysical Response & Transfer Law (Grain Bin Bushel Capac) Bin Diameter Feet: 36 ft • Grain Level Eave Height Feet: 24 ft TOTAL PACKED GRAIN BIN CAP 22,686.61 bushels • Cylinder Level Bushels: 20,808.1 bushels • Peaked Top Cone Bushel: 1,878.51 bushels Eq: V_cyl = π·R²·H_eave; V_cone =
Graph 2 • Total Packed Grain Bin Capacity Across Bin Diameter Feet Sweep (40% → 160%) Evaluates V_cyl = π·R²·H_eave; V_cone = (1/3)·π·R²·H_peak; VolumetricBushels = across 7 operating points (current input highlighted).
0 bushel 31.9k bushel 63.9k bushel 3.6k 14.40ft 8.2k 21.60ft 14.5k 28.80ft 22.7k 36ft 32.7k 43.20ft 44.5k 50.40ft 58.1k 57.60ft
Graph 3 • Joint Sensitivity: Bin Diameter Feet × Grain Level Eave Height Feet Compares Total Packed Grain Bin Capacity when Grain Level Eave Height Feet is shifted +25% (solid) vs. −25% (dashed).
0 bushel 25.9k bushel 51.8k bushel --- Grain Level Eave Height Feet @ 75% 13.7k -30% 20.1k -15% 27.9k +0% 36.9k +15% 47.1k +30%
Summary: A 36 ft × 24 ft bin (+6.5 ft cone) holds 26634 ft³ = 21402 volumetric bushels, or 22687 compacted bushels (+6% pack).
Summary: A 36 ft × 24 ft bin (+6.5 ft cone) holds 26634 ft³ = 21402 volumetric bushels, or 22687 compacted bushels (+6% pack).
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Formula & Mathematical Methodology: Grain Bin Bushel Capacity Formula

Vcyl = π·R²·Heave
Vcone = (1/3)·π·R²·Hpeak
VolumetricBushels = (Vcyl + Vcone) × 0.803564
V_cyl = π·R²·H_eave; V_cone = (1/3)·π·R²·H_peak; VolumetricBushels = (V_cyl + V_cone) × 0.803564
  • binDiameterFeet: Bin Diameter Feet (ft)
  • grainLevelEaveHeightFeet: Grain Level Eave Height Feet (ft)
  • angleOfReposeConePeakFeet: Angle Of Repose Cone Peak Feet (ft)
  • grainCompactionPackPct: Grain Compaction Pack Pct (%)

Rounding: Engineering outputs round to 2–3 decimal places; discrete material bag/unit counts round up via ceiling.

Worked Example: Engineering Scenario: Grain Bin Bushel Capacity

Compute grain bin cylinder + cone peak capacity in US Winchester bushels (1 bu = 1.24446 ft³).

  1. Enter your system dimensions, electrical/RF ratings, or environmental conditions.
  2. Evaluate the governing equation: V_cyl = π·R²·H_eave; V_cone = (1/3)·π·R²·H_peak; VolumetricBushels = (V_cyl + V_cone) × 0.803564.
  3. Inspect the primary design output, supporting allowances, and 3 SVG schematics.
Result: Computes Grain Bin Bushel Capacity via V_cyl = π·R²·H_eave; V_cone = (1/3)·π·R²·H_peak; VolumetricBushels = (V_cyl + V_cone) × 0.803564.

Frequently Asked Questions

How does the Cylindrical Grain Bin Bushel Capacity (Winchester 1.2445 ft³/bu & Test Weight) Calculator calculate results?

It evaluates V_cyl = π·R²·H_eave; V_cone = (1/3)·π·R²·H_peak; VolumetricBushels = (V_cyl + V_cone) × 0.803564 directly in your browser and updates three custom SVG visualizations in real time.

Can I use Goal Seek to solve backwards for a required dimension or rating?

Yes. Click "🎯 Goal Seek" in the results toolbar to solve backwards for any numeric input parameter.

Does this engineering calculator work offline?

Yes. All calculations run 100% locally in your browser and work offline via the CalculatorGraph PWA.

Science & Engineering · Environmental & Agricultural Science

Cylindrical Grain Bin Bushel Capacity (Winchester 1.2445 ft³/bu & Test Weight) Calculator: inputs, method, and how to read the result

Compute grain bin cylinder + cone peak capacity in US Winchester bushels (1 bu = 1.24446 ft³).

Choose inputs for the case you are checking

The defaults are illustrative. Replace them with values for your case and keep the units shown beside each field.

  • Bin Diameter Feet: Grain bin internal diameter in feet.
  • Grain Level Eave Height Feet: Level grain fill height at bin wall in feet.
  • Angle Of Repose Cone Peak Feet: Peaked grain cone height above eave in feet (0 if leveled).
  • Grain Compaction Pack Pct: Grain settling/packing density factor (typically 5% to 8%).

What the calculation includes

With the default values shown, Total Packed Grain Bin Capacity is 22,686.61 bushels. The calculation follows Grain Bin Bushel Capacity Formula; the formula and variable definitions above show how the inputs combine.

One-input check: With the other defaults held constant, changing Bin Diameter Feet from 36 ft to 40 ft changes Total Packed Grain Bin Capacity from 22,686.61 bushels to 28,008.16 bushels. This is a comparison inside the calculator's stated model, not a prediction.

Where to use caution

  • Uses standard NREL, IEEE, ASHRAE, and IRC design equations.
  • Verify final structural, electrical, and mechanical specifications against local building codes.

Scope: Global Engineering & Building Code Standard Check the assumptions and limitations against your situation before relying on the estimate.

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