{
  "slug": "pool-volume",
  "title": "Pool Volume Calculator",
  "heading": "Pool Volume Calculator",
  "category": "other",
  "url": "https://www.revenuelab.fyi/toolbox/pool-volume",
  "summary": "Gallons in your pool, plus fill time and heating cost.",
  "description": "Chemical dosing depends entirely on getting the gallon count right. For a sloped bottom, use the average of the shallow and deep end depths.",
  "formula": "Gallons = Length × Width × Average depth × 7.48 (rectangular).",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=pool-volume",
  "inputs": [
    {
      "id": "shape",
      "label": "Pool shape",
      "kind": "select",
      "hint": null,
      "default": "rect",
      "options": [
        {
          "value": "rect",
          "label": "Rectangular"
        },
        {
          "value": "round",
          "label": "Round"
        },
        {
          "value": "oval",
          "label": "Oval"
        }
      ]
    },
    {
      "id": "length",
      "label": "Length or diameter",
      "kind": "number",
      "hint": null,
      "default": 32,
      "unit": "ft",
      "min": 1,
      "max": null
    },
    {
      "id": "width",
      "label": "Width",
      "kind": "number",
      "hint": null,
      "default": 16,
      "unit": "ft",
      "min": 1,
      "max": null
    },
    {
      "id": "shallow",
      "label": "Shallow end depth",
      "kind": "number",
      "hint": null,
      "default": 3.5,
      "unit": "ft",
      "min": 0.5,
      "max": null
    },
    {
      "id": "deep",
      "label": "Deep end depth",
      "kind": "number",
      "hint": null,
      "default": 8,
      "unit": "ft",
      "min": 0.5,
      "max": null
    },
    {
      "id": "hoseGpm",
      "label": "Fill rate",
      "kind": "number",
      "hint": null,
      "default": 9,
      "unit": "gal/min",
      "min": 0.5,
      "max": null
    }
  ],
  "outputs": [
    {
      "id": "gallons",
      "label": "Pool volume (gallons)",
      "format": "number",
      "hint": null,
      "primary": true
    },
    {
      "id": "liters",
      "label": "Litres",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "surface",
      "label": "Surface area (sq ft)",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "avgDepth",
      "label": "Average depth (ft)",
      "format": "decimal",
      "hint": null,
      "primary": false
    },
    {
      "id": "fillHours",
      "label": "Hours to fill",
      "format": "decimal",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Pool shape: Rectangular",
      "Length or diameter: 32 ft",
      "Width: 16 ft",
      "Shallow end depth: 3.5 ft",
      "Deep end depth: 8 ft",
      "Fill rate: 9 gal/min"
    ],
    "outputs": [
      "Pool volume (gallons): 22,021.12",
      "Litres: 83,349.94",
      "Surface area (sq ft): 512",
      "Average depth (ft): 5.75",
      "Hours to fill: 40.8"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter pool shape.",
      "Enter length or diameter (ft).",
      "Enter width (ft).",
      "Enter shallow end depth (ft).",
      "Enter deep end depth (ft).",
      "Enter fill rate (gal/min).",
      "Read your pool volume (gallons) 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": {
        "shape": "rect",
        "length": 19,
        "width": 10,
        "shallow": 2.1,
        "deep": 4.8,
        "hoseGpm": 5.3999999999999995
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "shape": "rect",
        "length": 32,
        "width": 16,
        "shallow": 3.5,
        "deep": 8,
        "hoseGpm": 9
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "shape": "rect",
        "length": 51,
        "width": 26,
        "shallow": 5.6000000000000005,
        "deep": 12.8,
        "hoseGpm": 14.4
      }
    }
  ],
  "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 does the pool volume calculator work?",
      "a": "Chemical dosing depends entirely on getting the gallon count right. For a sloped bottom, use the average of the shallow and deep end depths. The underlying maths is: Gallons = Length × Width × Average depth × 7.48 (rectangular)."
    },
    {
      "q": "What do I need to enter?",
      "a": "6 values: pool shape, length or diameter, width, shallow end depth, deep end depth, and fill rate. Each field starts with a sensible default, so you can change one number at a time and watch the result move."
    },
    {
      "q": "What does the pool volume (gallons) result mean?",
      "a": "It is returned as a whole number and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds."
    },
    {
      "q": "Is this calculator free, and do I need an account?",
      "a": "Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser."
    },
    {
      "q": "How accurate is the result?",
      "a": "It applies the standard formula exactly, so the arithmetic is precise. Estimates assume standard, average conditions — local rules, pricing, and materials vary."
    },
    {
      "q": "Who is this tool for?",
      "a": "It's built for anyone doing everyday planning maths — a quick estimate that would otherwise need four browser tabs and a calculator app."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/water-usage",
    "https://www.revenuelab.fyi/toolbox/electricity-cost"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Pool Volume Calculator (https://www.revenuelab.fyi/toolbox/pool-volume)"
}