{
  "entity_type": "unit_conversion_page",
  "id": "cubic-meters-to-gallons",
  "name": "Cubic meters to US gallons",
  "title": "Cubic meters to US gallons Converter (m³ to gal (US))",
  "description": "Convert cubic meters to US gallons: 1 m³ = 264.172 gal (US). Exact conversion factor, formula, 22-row table and worked examples, with JSON API and MCP access.",
  "quantity": "volume",
  "quantity_name": "Volume",
  "base_unit": "L",
  "from_unit": {
    "symbol": "m3",
    "display": "m³",
    "name": "cubic meters",
    "singular": "cubic meter"
  },
  "to_unit": {
    "symbol": "gal_us",
    "display": "gal (US)",
    "name": "US gallons",
    "singular": "gallon"
  },
  "linear": true,
  "factor": 264.1720524,
  "inverse_factor": 0.003785411784,
  "formula": "US gallons = cubic meters × 264.1720524",
  "reverse_formula": "cubic meters = US gallons × 0.003785411784",
  "unit_relation": "1 m³ = 264.172 gal (US)",
  "examples": [
    {
      "value": 5,
      "result": 1320.86,
      "text": "5 m³ = 1320.86 gal (US)"
    },
    {
      "value": 12.5,
      "result": 3302.15,
      "text": "12.5 m³ = 3302.15 gal (US)"
    },
    {
      "value": 100,
      "result": 26417.2,
      "text": "100 m³ = 26417.2 gal (US)"
    }
  ],
  "table": [
    {
      "m3": 1,
      "gal_us": 264.172
    },
    {
      "m3": 2,
      "gal_us": 528.344
    },
    {
      "m3": 3,
      "gal_us": 792.516
    },
    {
      "m3": 4,
      "gal_us": 1056.69
    },
    {
      "m3": 5,
      "gal_us": 1320.86
    },
    {
      "m3": 6,
      "gal_us": 1585.03
    },
    {
      "m3": 7,
      "gal_us": 1849.2
    },
    {
      "m3": 8,
      "gal_us": 2113.38
    },
    {
      "m3": 9,
      "gal_us": 2377.55
    },
    {
      "m3": 10,
      "gal_us": 2641.72
    },
    {
      "m3": 15,
      "gal_us": 3962.58
    },
    {
      "m3": 20,
      "gal_us": 5283.44
    },
    {
      "m3": 25,
      "gal_us": 6604.3
    },
    {
      "m3": 30,
      "gal_us": 7925.16
    },
    {
      "m3": 40,
      "gal_us": 10566.9
    },
    {
      "m3": 50,
      "gal_us": 13208.6
    },
    {
      "m3": 75,
      "gal_us": 19812.9
    },
    {
      "m3": 100,
      "gal_us": 26417.2
    },
    {
      "m3": 200,
      "gal_us": 52834.4
    },
    {
      "m3": 250,
      "gal_us": 66043
    },
    {
      "m3": 500,
      "gal_us": 132086
    },
    {
      "m3": 1000,
      "gal_us": 264172
    }
  ],
  "faq": [
    {
      "q": "How many US gallons are in one cubic meter?",
      "a": "1 m³ = 264.172 gal (US). The factor comes from the SI definitions of both units (NIST SP 811 / BIPM), so it is exact or correct to at least 10 significant figures."
    },
    {
      "q": "What is the formula to convert cubic meters to US gallons?",
      "a": "Multiply the value in cubic meters by 264.1720524: US gallons = cubic meters × 264.1720524. For example, 5 m³ = 1320.86 gal (US)."
    },
    {
      "q": "How do I convert US gallons back to cubic meters?",
      "a": "Multiply by the inverse factor 0.003785411784 (cubic meters = US gallons × 0.003785411784), or use the US gallons-to-cubic meters page."
    }
  ],
  "sources": [
    {
      "name": "NIST Special Publication 811 – Guide for the Use of the International System of Units (SI), Appendix B conversion factors",
      "url": "https://www.nist.gov/pml/special-publication-811",
      "type": "standard",
      "retrieved_at": "2026-09-24"
    },
    {
      "name": "BIPM – The International System of Units (SI Brochure, 9th edition)",
      "url": "https://www.bipm.org/en/publications/si-brochure",
      "type": "standard",
      "retrieved_at": "2026-09-24"
    },
    {
      "name": "Wikipedia – Conversion of units",
      "url": "https://en.wikipedia.org/wiki/Conversion_of_units",
      "type": "reference",
      "retrieved_at": "2026-09-24"
    }
  ],
  "freshness": {
    "type": "static",
    "max_age_seconds": null,
    "note": "Fixed conversion factors (NIST/BIPM definitions); results never go stale."
  },
  "api": {
    "convert": "https://tttkmbb.com/api/v1/convert?value=5&from_unit=m3&to_unit=gal_us",
    "calculator": "https://tttkmbb.com/api/v1/calculate/volume?value=5&from_unit=m3&to_unit=gal_us",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "m3",
      "to_unit": "gal_us"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/cubic-meters-to-gallons",
    "markdown": "https://tttkmbb.com/conversion/cubic-meters-to-gallons.md",
    "json": "https://tttkmbb.com/conversion/cubic-meters-to-gallons.json",
    "reverse": "https://tttkmbb.com/conversion/gallons-to-cubic-meters",
    "quantity_converter": "https://tttkmbb.com/conversion/volume",
    "units": "https://tttkmbb.com/api/v1/units?quantity=volume"
  },
  "timestamp": "2026-09-24"
}