{
  "slug": "grain-bin-capacity",
  "title": "Grain Bin Capacity Calculator",
  "heading": "Grain Bin Capacity Calculator",
  "category": "other",
  "url": "https://www.revenuelab.fyi/toolbox/grain-bin-capacity",
  "summary": "Bushels in a round bin, including the peak cone.",
  "description": "Convert bin diameter and grain depth into bushels, add the volume in the peaked cone on top, and value the contents at your market price.",
  "formula": "Bushels = π r² × depth × 0.8036; cone adds ⅓ × π r² × cone height.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=grain-bin-capacity",
  "inputs": [
    {
      "id": "diameter",
      "label": "Bin diameter",
      "kind": "number",
      "hint": null,
      "default": 30,
      "unit": "ft",
      "min": 1,
      "max": null
    },
    {
      "id": "depth",
      "label": "Grain depth (level)",
      "kind": "number",
      "hint": null,
      "default": 18,
      "unit": "ft",
      "min": 0,
      "max": null
    },
    {
      "id": "coneHt",
      "label": "Peak cone height",
      "kind": "number",
      "hint": null,
      "default": 6,
      "unit": "ft",
      "min": 0,
      "max": null
    },
    {
      "id": "price",
      "label": "Market price",
      "kind": "number",
      "hint": null,
      "default": 4.6,
      "unit": "$/bu",
      "min": 0,
      "max": null
    },
    {
      "id": "testWt",
      "label": "Test weight",
      "kind": "number",
      "hint": null,
      "default": 56,
      "unit": "lb/bu",
      "min": 20,
      "max": null
    }
  ],
  "outputs": [
    {
      "id": "total",
      "label": "Total bushels",
      "format": "number",
      "hint": null,
      "primary": true
    },
    {
      "id": "cyl",
      "label": "Bushels in cylinder",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "cone",
      "label": "Bushels in peak",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "value",
      "label": "Value at market price",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "tons",
      "label": "Weight (tons)",
      "format": "decimal",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Bin diameter: 30 ft",
      "Grain depth (level): 18 ft",
      "Peak cone height: 6 ft",
      "Market price: 4.6 $/bu",
      "Test weight: 56 lb/bu"
    ],
    "outputs": [
      "Total bushels: 11,361",
      "Bushels in cylinder: 10,225",
      "Bushels in peak: 1,136",
      "Value at market price: $52,259",
      "Weight (tons): 318.1"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter bin diameter (ft).",
      "Enter grain depth (level) (ft).",
      "Enter peak cone height (ft).",
      "Enter market price ($/bu).",
      "Enter test weight (lb/bu).",
      "Read your total bushels on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "diameter": 18,
        "depth": 10.799999999999999,
        "coneHt": 3.5999999999999996,
        "price": 2.76,
        "testWt": 34
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "diameter": 30,
        "depth": 18,
        "coneHt": 6,
        "price": 4.6,
        "testWt": 56
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "diameter": 48,
        "depth": 28.8,
        "coneHt": 9.600000000000001,
        "price": 7.359999999999999,
        "testWt": 90
      }
    }
  ],
  "limitations": [
    "Estimates assume standard, average conditions — local rules, pricing, and materials vary.",
    "Results are rounded for readability; add a buffer before ordering, booking, or committing.",
    "Double-check anything with a real cost attached against a local quote."
  ],
  "faq": [
    {
      "q": "Where does 0.8036 come from?",
      "a": "There are 1.2445 cubic feet in a bushel, so cubic feet times 0.8036 gives bushels."
    },
    {
      "q": "Does grain type change the answer?",
      "a": "Volume doesn't change, but weight does. Corn at 56 lb/bu and soybeans at 60 lb/bu differ meaningfully on tonnage."
    }
  ],
  "related": [],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Grain Bin Capacity Calculator (https://www.revenuelab.fyi/toolbox/grain-bin-capacity)"
}