{
  "slug": "mulch-cubic-yards-calculator",
  "title": "Mulch Cubic Yards Calculator",
  "heading": "Mulch Cubic Yards Calculator",
  "category": "other",
  "url": "https://www.revenuelab.fyi/toolbox/mulch-cubic-yards-calculator",
  "summary": "Bulk mulch order size in cubic yards based on bed area and spread depth.",
  "description": "Bulk mulch delivered by the cubic yard is the most economical way to cover garden beds larger than a few hundred square feet, and the right order size depends entirely on your total bed area and how deep you plan to spread it. This calculator takes your area and desired depth, most commonly 2-3 inches for maintaining an existing bed or 3-4 inches when establishing new weed suppression, converts to cubic feet and then cubic yards, and adds a waste allowance for the mulch that ends up on the lawn edge or driveway during spreading rather than in the bed itself. Because mulch beds are rarely simple rectangles, measuring total square footage by breaking the space into rough rectangles and triangles first, then summing them, gives a more accurate area than a single length-times-width guess. The tool also reports the equivalent bag count using a standard 2-cubic-foot bag if your order is small enough that bulk delivery isn't worth arranging, since most suppliers have a minimum delivery quantity around 3-5 cubic yards.",
  "formula": "Cubic Yards = (Area × Depth ft) ÷ 27 × (1 + Waste%). Bags (2 cu ft) = Cubic Feet ÷ 2.",
  "dateModified": "2026-09-06",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=mulch-cubic-yards-calculator",
  "inputs": [
    {
      "id": "area",
      "label": "Bed area",
      "kind": "number",
      "hint": null,
      "default": 500,
      "unit": "sq ft",
      "min": 5,
      "max": null
    },
    {
      "id": "depthIn",
      "label": "Spread depth",
      "kind": "number",
      "hint": null,
      "default": 3,
      "unit": "in",
      "min": 0.5,
      "max": 8
    },
    {
      "id": "wastePct",
      "label": "Waste factor",
      "kind": "number",
      "hint": null,
      "default": 10,
      "unit": "%",
      "min": 0,
      "max": 25
    }
  ],
  "outputs": [
    {
      "id": "cubicYards",
      "label": "Bulk mulch needed",
      "format": "decimal",
      "hint": "cu yd",
      "primary": true
    },
    {
      "id": "bags2cf",
      "label": "Equivalent 2 cu ft bags",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "cubicFeet",
      "label": "Total cubic feet",
      "format": "decimal",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Bed area: 500 sq ft",
      "Spread depth: 3 in",
      "Waste factor: 10 %"
    ],
    "outputs": [
      "Bulk mulch needed: 5.09",
      "Equivalent 2 cu ft bags: 69",
      "Total cubic feet: 125"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter bed area (sq ft).",
      "Enter spread depth (in).",
      "Enter waste factor (%).",
      "Read your bulk mulch needed 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": {
        "area": 300,
        "depthIn": 1.7999999999999998,
        "wastePct": 6
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "area": 500,
        "depthIn": 3,
        "wastePct": 10
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "area": 800,
        "depthIn": 4.800000000000001,
        "wastePct": 16
      }
    }
  ],
  "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": "How deep should mulch be spread?",
      "a": "2-3 inches is standard for maintaining an established bed, while 3-4 inches helps establish weed suppression in a new bed — deeper than 4 inches risks smothering roots and trapping excess moisture against stems."
    },
    {
      "q": "How much area does a cubic yard of mulch cover?",
      "a": "At the common 3-inch depth, one cubic yard covers about 108 square feet; at 2 inches it stretches to roughly 162 square feet."
    },
    {
      "q": "Is bulk mulch cheaper than bagged mulch?",
      "a": "Yes, for beds over roughly 200-300 square feet, bulk delivered mulch by the cubic yard is almost always cheaper per unit volume than buying 2-cubic-foot bags individually."
    },
    {
      "q": "How often should mulch be refreshed?",
      "a": "Most organic mulches break down and compact over a year, so an annual or biannual top-up of 1-2 inches is typical rather than fully replacing the bed each time."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/mulch-bags-calculator",
    "https://www.revenuelab.fyi/toolbox/topsoil-cubic-yards-calculator",
    "https://www.revenuelab.fyi/toolbox/sod-pallets-calculator"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Mulch Cubic Yards Calculator (https://www.revenuelab.fyi/toolbox/mulch-cubic-yards-calculator)"
}