{
  "entity_type": "unit_conversion_page",
  "id": "quarts-to-gallons",
  "name": "US quarts to US gallons",
  "title": "US quarts to US gallons Converter (qt to gal (US))",
  "description": "Convert US quarts to US gallons: 1 qt = 0.25 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": "quart_us",
    "display": "qt",
    "name": "US quarts",
    "singular": "quart"
  },
  "to_unit": {
    "symbol": "gal_us",
    "display": "gal (US)",
    "name": "US gallons",
    "singular": "gallon"
  },
  "linear": true,
  "factor": 0.25,
  "inverse_factor": 4,
  "formula": "US gallons = US quarts × 0.25",
  "reverse_formula": "US quarts = US gallons × 4",
  "unit_relation": "1 qt = 0.25 gal (US)",
  "examples": [
    {
      "value": 5,
      "result": 1.25,
      "text": "5 qt = 1.25 gal (US)"
    },
    {
      "value": 12.5,
      "result": 3.125,
      "text": "12.5 qt = 3.125 gal (US)"
    },
    {
      "value": 100,
      "result": 25,
      "text": "100 qt = 25 gal (US)"
    }
  ],
  "table": [
    {
      "quart_us": 1,
      "gal_us": 0.25
    },
    {
      "quart_us": 2,
      "gal_us": 0.5
    },
    {
      "quart_us": 3,
      "gal_us": 0.75
    },
    {
      "quart_us": 4,
      "gal_us": 1
    },
    {
      "quart_us": 5,
      "gal_us": 1.25
    },
    {
      "quart_us": 6,
      "gal_us": 1.5
    },
    {
      "quart_us": 7,
      "gal_us": 1.75
    },
    {
      "quart_us": 8,
      "gal_us": 2
    },
    {
      "quart_us": 9,
      "gal_us": 2.25
    },
    {
      "quart_us": 10,
      "gal_us": 2.5
    },
    {
      "quart_us": 15,
      "gal_us": 3.75
    },
    {
      "quart_us": 20,
      "gal_us": 5
    },
    {
      "quart_us": 25,
      "gal_us": 6.25
    },
    {
      "quart_us": 30,
      "gal_us": 7.5
    },
    {
      "quart_us": 40,
      "gal_us": 10
    },
    {
      "quart_us": 50,
      "gal_us": 12.5
    },
    {
      "quart_us": 75,
      "gal_us": 18.75
    },
    {
      "quart_us": 100,
      "gal_us": 25
    },
    {
      "quart_us": 200,
      "gal_us": 50
    },
    {
      "quart_us": 250,
      "gal_us": 62.5
    },
    {
      "quart_us": 500,
      "gal_us": 125
    },
    {
      "quart_us": 1000,
      "gal_us": 250
    }
  ],
  "faq": [
    {
      "q": "How many US gallons are in one quart?",
      "a": "1 qt = 0.25 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 US quarts to US gallons?",
      "a": "Multiply the value in US quarts by 0.25: US gallons = US quarts × 0.25. For example, 5 qt = 1.25 gal (US)."
    },
    {
      "q": "How do I convert US gallons back to US quarts?",
      "a": "Multiply by the inverse factor 4 (US quarts = US gallons × 4), or use the US gallons-to-US quarts 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=quart_us&to_unit=gal_us",
    "calculator": "https://tttkmbb.com/api/v1/calculate/volume?value=5&from_unit=quart_us&to_unit=gal_us",
    "mcp_tool": "convert_units",
    "mcp_arguments": {
      "value": 5,
      "from_unit": "quart_us",
      "to_unit": "gal_us"
    }
  },
  "links": {
    "html": "https://tttkmbb.com/conversion/quarts-to-gallons",
    "markdown": "https://tttkmbb.com/conversion/quarts-to-gallons.md",
    "json": "https://tttkmbb.com/conversion/quarts-to-gallons.json",
    "reverse": "https://tttkmbb.com/conversion/gallons-to-quarts",
    "quantity_converter": "https://tttkmbb.com/conversion/volume",
    "units": "https://tttkmbb.com/api/v1/units?quantity=volume"
  },
  "timestamp": "2026-09-24"
}