{
  "ok": true,
  "about": "Conversion factors to each category base unit, with an exactness flag and the defining authority. The prose version of this data is at https://unitglide.net/methodology. `factorToBase` is the number of base units in one of this unit; it is null for temperature, which converts by formula.",
  "exactness": {
    "true": "The value shown is the exact defined value.",
    "false": "The definition is exact but not a terminating decimal, or the value shown is rounded from a longer exact figure. See `note`.",
    "null": "Exactness is not asserted: there is no factor, or the value rests on a convention with no defining authority. See `note`."
  },
  "categories": [
    {
      "id": "length",
      "name": "Length",
      "baseUnit": "m",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "mass",
      "name": "Mass",
      "baseUnit": "kg",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
          "url": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c"
        }
      ]
    },
    {
      "id": "temperature",
      "name": "Temperature",
      "baseUnit": "k",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST, Kelvin: Introduction",
          "url": "https://www.nist.gov/si-redefinition/kelvin-introduction"
        }
      ]
    },
    {
      "id": "volume",
      "name": "Volume",
      "baseUnit": "l",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
          "url": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c"
        }
      ]
    },
    {
      "id": "area",
      "name": "Area",
      "baseUnit": "m2",
      "sources": [
        {
          "label": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
          "url": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c"
        },
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "speed",
      "name": "Speed",
      "baseUnit": "mps",
      "sources": [
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "time",
      "name": "Time",
      "baseUnit": "s",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "digital",
      "name": "Digital storage",
      "baseUnit": "byte",
      "sources": [
        {
          "label": "IEC 80000-13, Quantities and units — Information science and technology",
          "url": "https://www.iec.ch/prefixes-binary-multiples"
        },
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "pressure",
      "name": "Pressure",
      "baseUnit": "pa",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "energy",
      "name": "Energy",
      "baseUnit": "j",
      "sources": [
        {
          "label": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
          "url": "https://www.bipm.org/en/publications/si-brochure"
        },
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "power",
      "name": "Power",
      "baseUnit": "w",
      "sources": [
        {
          "label": "NIST Special Publication 811, Guide for the Use of the International System of Units",
          "url": "https://www.nist.gov/pml/special-publication-811"
        }
      ]
    },
    {
      "id": "typography",
      "name": "Typography",
      "baseUnit": "px",
      "sources": [
        {
          "label": "W3C, CSS Values and Units Module (absolute lengths)",
          "url": "https://www.w3.org/TR/css-values-4/#absolute-lengths"
        }
      ]
    }
  ],
  "units": [
    {
      "id": "mm",
      "name": "Millimeter",
      "symbol": "mm",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 0.001,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "cm",
      "name": "Centimeter",
      "symbol": "cm",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 0.01,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "m",
      "name": "Meter",
      "symbol": "m",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category."
    },
    {
      "id": "km",
      "name": "Kilometer",
      "symbol": "km",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 1000,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "in",
      "name": "Inch",
      "symbol": "in",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 0.0254,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "1 in = 25.4 mm exactly. Fixed by the 1959 international yard and pound agreement, and therefore exact."
    },
    {
      "id": "ft",
      "name": "Foot",
      "symbol": "ft",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 0.3048,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "1 ft = 0.3048 m exactly. Fixed by the 1959 international yard and pound agreement, and therefore exact."
    },
    {
      "id": "yd",
      "name": "Yard",
      "symbol": "yd",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 0.9144,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "1 yd = 0.9144 m exactly. Fixed by the 1959 international yard and pound agreement, and therefore exact."
    },
    {
      "id": "mi",
      "name": "Mile",
      "symbol": "mi",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 1609.344,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "1 mi = 1609.344 m exactly. Fixed by the 1959 international yard and pound agreement, and therefore exact."
    },
    {
      "id": "nmi",
      "name": "Nautical mile",
      "symbol": "nmi",
      "category": "length",
      "categoryName": "Length",
      "baseUnit": {
        "id": "m",
        "name": "Meter",
        "symbol": "m"
      },
      "factorToBase": 1852,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "The international nautical mile is exactly 1852 m."
    },
    {
      "id": "mg",
      "name": "Milligram",
      "symbol": "mg",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 0.000001,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "g",
      "name": "Gram",
      "symbol": "g",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 0.001,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "kg",
      "name": "Kilogram",
      "symbol": "kg",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category."
    },
    {
      "id": "t",
      "name": "Metric ton",
      "symbol": "t",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 1000,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "The metric ton is exactly 1000 kg."
    },
    {
      "id": "oz",
      "name": "Ounce",
      "symbol": "oz",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 0.028349523125,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "One sixteenth of the avoirdupois pound: 0.028349523125 kg exactly."
    },
    {
      "id": "lb",
      "name": "Pound",
      "symbol": "lb",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 0.45359237,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "The avoirdupois pound is exactly 0.45359237 kg. Fixed by the 1959 international yard and pound agreement, and therefore exact."
    },
    {
      "id": "st",
      "name": "Stone",
      "symbol": "st",
      "category": "mass",
      "categoryName": "Mass",
      "baseUnit": {
        "id": "kg",
        "name": "Kilogram",
        "symbol": "kg"
      },
      "factorToBase": 6.35029318,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "14 avoirdupois pounds: 6.35029318 kg exactly."
    },
    {
      "id": "c",
      "name": "Celsius",
      "symbol": "°C",
      "category": "temperature",
      "categoryName": "Temperature",
      "baseUnit": {
        "id": "k",
        "name": "Kelvin",
        "symbol": "K"
      },
      "factorToBase": null,
      "exact": null,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Celsius has a different zero point from kelvin, so it converts by the exact formula K = C + 273.15, not by a factor. `factorToBase` is null for that reason."
    },
    {
      "id": "f",
      "name": "Fahrenheit",
      "symbol": "°F",
      "category": "temperature",
      "categoryName": "Temperature",
      "baseUnit": {
        "id": "k",
        "name": "Kelvin",
        "symbol": "K"
      },
      "factorToBase": null,
      "exact": null,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Fahrenheit converts by the exact formula K = (F - 32) x 5/9 + 273.15, not by a factor. `factorToBase` is null for that reason."
    },
    {
      "id": "k",
      "name": "Kelvin",
      "symbol": "K",
      "category": "temperature",
      "categoryName": "Temperature",
      "baseUnit": {
        "id": "k",
        "name": "Kelvin",
        "symbol": "K"
      },
      "factorToBase": null,
      "exact": null,
      "source": "NIST, Kelvin: Introduction",
      "sourceUrl": "https://www.nist.gov/si-redefinition/kelvin-introduction",
      "note": "Base unit of the category. Temperature conversions use formulas rather than factors."
    },
    {
      "id": "ml",
      "name": "Milliliter",
      "symbol": "ml",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.001,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "l",
      "name": "Liter",
      "symbol": "l",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category. One litre is exactly one cubic decimetre."
    },
    {
      "id": "tsp",
      "name": "Teaspoon",
      "symbol": "tsp",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.00492892159375,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US teaspoon, one sixth of a US fluid ounce: 4.92892159375 mL exactly."
    },
    {
      "id": "tbsp",
      "name": "Tablespoon",
      "symbol": "tbsp",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.01478676478125,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US tablespoon, half a US fluid ounce: 14.78676478125 mL exactly."
    },
    {
      "id": "floz",
      "name": "Fluid ounce",
      "symbol": "fl oz",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.0295735295625,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US fluid ounce, 1/128 US gallon: 29.5735295625 mL exactly."
    },
    {
      "id": "cup",
      "name": "Cup",
      "symbol": "cup",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.2365882365,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US cup, 8 US fluid ounces: 236.5882365 mL exactly."
    },
    {
      "id": "pt",
      "name": "Pint",
      "symbol": "pt",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.473176473,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US liquid pint, 16 US fluid ounces: 0.473176473 L exactly."
    },
    {
      "id": "qt",
      "name": "Quart",
      "symbol": "qt",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 0.946352946,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US liquid quart, 32 US fluid ounces: 0.946352946 L exactly."
    },
    {
      "id": "gal",
      "name": "Gallon",
      "symbol": "gal",
      "category": "volume",
      "categoryName": "Volume",
      "baseUnit": {
        "id": "l",
        "name": "Liter",
        "symbol": "l"
      },
      "factorToBase": 3.785411784,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "US gallon, exactly 231 cubic inches: 3.785411784 L exactly."
    },
    {
      "id": "cm2",
      "name": "Square centimeter",
      "symbol": "cm²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 0.0001,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "m2",
      "name": "Square meter",
      "symbol": "m²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category."
    },
    {
      "id": "km2",
      "name": "Square kilometer",
      "symbol": "km²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 1000000,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "sqin",
      "name": "Square inch",
      "symbol": "in²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 0.00064516,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "Square of the exact inch: 0.0254^2 m^2."
    },
    {
      "id": "sqft",
      "name": "Square foot",
      "symbol": "ft²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 0.09290304,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "Square of the exact foot: 0.3048^2 m^2."
    },
    {
      "id": "sqyd",
      "name": "Square yard",
      "symbol": "yd²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 0.83612736,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "Square of the exact yard: 0.9144^2 m^2."
    },
    {
      "id": "acre",
      "name": "Acre",
      "symbol": "ac",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 4046.8564224,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "One acre is exactly 4046.8564224 m^2."
    },
    {
      "id": "ha",
      "name": "Hectare",
      "symbol": "ha",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 10000,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "One hectare is exactly 10 000 m^2."
    },
    {
      "id": "sqmi",
      "name": "Square mile",
      "symbol": "mi²",
      "category": "area",
      "categoryName": "Area",
      "baseUnit": {
        "id": "m2",
        "name": "Square meter",
        "symbol": "m²"
      },
      "factorToBase": 2589988.110336,
      "exact": true,
      "source": "NIST Handbook 44, Appendix C: General Tables of Units of Measurement",
      "sourceUrl": "https://www.nist.gov/document/2026-nist-handbook-44-appendix-c",
      "note": "Square of the exact mile: 1609.344^2 m^2."
    },
    {
      "id": "mps",
      "name": "Meter per second",
      "symbol": "m/s",
      "category": "speed",
      "categoryName": "Speed",
      "baseUnit": {
        "id": "mps",
        "name": "Meter per second",
        "symbol": "m/s"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Base unit of the category."
    },
    {
      "id": "kph",
      "name": "Kilometer per hour",
      "symbol": "km/h",
      "category": "speed",
      "categoryName": "Speed",
      "baseUnit": {
        "id": "mps",
        "name": "Meter per second",
        "symbol": "m/s"
      },
      "factorToBase": 0.2777777777777778,
      "exact": false,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Defined exactly as 1/3.6 m/s, which is a repeating decimal. The figure here is that exact ratio rounded to double precision."
    },
    {
      "id": "mph",
      "name": "Mile per hour",
      "symbol": "mph",
      "category": "speed",
      "categoryName": "Speed",
      "baseUnit": {
        "id": "mps",
        "name": "Meter per second",
        "symbol": "m/s"
      },
      "factorToBase": 0.44704,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One mile per hour is exactly 0.44704 m/s."
    },
    {
      "id": "fps",
      "name": "Foot per second",
      "symbol": "ft/s",
      "category": "speed",
      "categoryName": "Speed",
      "baseUnit": {
        "id": "mps",
        "name": "Meter per second",
        "symbol": "m/s"
      },
      "factorToBase": 0.3048,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One foot per second is exactly 0.3048 m/s."
    },
    {
      "id": "knot",
      "name": "Knot",
      "symbol": "kn",
      "category": "speed",
      "categoryName": "Speed",
      "baseUnit": {
        "id": "mps",
        "name": "Meter per second",
        "symbol": "m/s"
      },
      "factorToBase": 0.5144444444444445,
      "exact": false,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Defined exactly as 1852/3600 m/s (one nautical mile per hour), which is a repeating decimal. The figure here is that exact ratio rounded to double precision."
    },
    {
      "id": "ms",
      "name": "Millisecond",
      "symbol": "ms",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 0.001,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "s",
      "name": "Second",
      "symbol": "s",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category."
    },
    {
      "id": "min",
      "name": "Minute",
      "symbol": "min",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 60,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One minute is exactly 60 s."
    },
    {
      "id": "h",
      "name": "Hour",
      "symbol": "h",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 3600,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One hour is exactly 3600 s."
    },
    {
      "id": "day",
      "name": "Day",
      "symbol": "d",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 86400,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One day is exactly 86 400 s."
    },
    {
      "id": "week",
      "name": "Week",
      "symbol": "wk",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 604800,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Seven days: 604 800 s exactly."
    },
    {
      "id": "month",
      "name": "Month",
      "symbol": "mo",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 2629800,
      "exact": null,
      "source": null,
      "sourceUrl": null,
      "note": "No standards body defines a generic month. UnitGlide uses one twelfth of a Julian year (365.25/12 days = 2 629 800 s), which is a convention, so exactness is not asserted."
    },
    {
      "id": "year",
      "name": "Year",
      "symbol": "yr",
      "category": "time",
      "categoryName": "Time",
      "baseUnit": {
        "id": "s",
        "name": "Second",
        "symbol": "s"
      },
      "factorToBase": 31557600,
      "exact": null,
      "source": null,
      "sourceUrl": null,
      "note": "UnitGlide uses the Julian year of 365.25 days (31 557 600 s), the convention stated on /methodology. It is exact under that convention, but the year is not an SI unit and /methodology cites no defining authority for it, so exactness is not asserted here."
    },
    {
      "id": "bit",
      "name": "Bit",
      "symbol": "bit",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 0.125,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "One bit is exactly one eighth of a byte (octet)."
    },
    {
      "id": "byte",
      "name": "Byte",
      "symbol": "B",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "Base unit of the category."
    },
    {
      "id": "kb",
      "name": "Kilobyte",
      "symbol": "KB",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 1000,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "Decimal (SI) prefix: 1 kB = 1000 B exactly. Not the binary KiB."
    },
    {
      "id": "mb",
      "name": "Megabyte",
      "symbol": "MB",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 1000000,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "Decimal (SI) prefix: 1 MB = 10^6 B exactly. Not the binary MiB."
    },
    {
      "id": "gb",
      "name": "Gigabyte",
      "symbol": "GB",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 1000000000,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "Decimal (SI) prefix: 1 GB = 10^9 B exactly. Not the binary GiB."
    },
    {
      "id": "tb",
      "name": "Terabyte",
      "symbol": "TB",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 1000000000000,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "Decimal (SI) prefix: 1 TB = 10^12 B exactly. Not the binary TiB."
    },
    {
      "id": "pb",
      "name": "Petabyte",
      "symbol": "PB",
      "category": "digital",
      "categoryName": "Digital storage",
      "baseUnit": {
        "id": "byte",
        "name": "Byte",
        "symbol": "B"
      },
      "factorToBase": 1000000000000000,
      "exact": true,
      "source": "IEC 80000-13, Quantities and units — Information science and technology",
      "sourceUrl": "https://www.iec.ch/prefixes-binary-multiples",
      "note": "Decimal (SI) prefix: 1 PB = 10^15 B exactly. Not the binary PiB."
    },
    {
      "id": "pa",
      "name": "Pascal",
      "symbol": "Pa",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category."
    },
    {
      "id": "kpa",
      "name": "Kilopascal",
      "symbol": "kPa",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 1000,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "bar",
      "name": "Bar",
      "symbol": "bar",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 100000,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One bar is exactly 100 000 Pa."
    },
    {
      "id": "psi",
      "name": "Pound per square inch",
      "symbol": "psi",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 6894.757293168,
      "exact": false,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One psi is exactly one pound-force per square inch, 4.4482216152605 N / 0.00064516 m^2, which is not a terminating decimal. The figure here is that exact value rounded."
    },
    {
      "id": "atm",
      "name": "Atmosphere",
      "symbol": "atm",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 101325,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "The standard atmosphere is exactly 101 325 Pa."
    },
    {
      "id": "torr",
      "name": "Torr",
      "symbol": "Torr",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 133.32236842105263,
      "exact": false,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Defined exactly as 1/760 of a standard atmosphere (101325/760 Pa), a repeating decimal. The figure here is that exact ratio rounded."
    },
    {
      "id": "mmhg",
      "name": "Millimeter of mercury",
      "symbol": "mmHg",
      "category": "pressure",
      "categoryName": "Pressure",
      "baseUnit": {
        "id": "pa",
        "name": "Pascal",
        "symbol": "Pa"
      },
      "factorToBase": 133.322387415,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Conventional millimetre of mercury: mercury density 13 595.1 kg/m^3 times standard gravity 9.806 65 m/s^2 times 0.001 m, which is exactly 133.322 387 415 Pa."
    },
    {
      "id": "j",
      "name": "Joule",
      "symbol": "J",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Base unit of the category."
    },
    {
      "id": "kj",
      "name": "Kilojoule",
      "symbol": "kJ",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 1000,
      "exact": true,
      "source": "BIPM, The International System of Units (SI Brochure, 9th ed.)",
      "sourceUrl": "https://www.bipm.org/en/publications/si-brochure",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "cal",
      "name": "Calorie",
      "symbol": "cal",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 4.184,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "The thermochemical calorie is exactly 4.184 J."
    },
    {
      "id": "kcal",
      "name": "Kilocalorie",
      "symbol": "kcal",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 4184,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "The food (thermochemical) kilocalorie is exactly 4184 J."
    },
    {
      "id": "wh",
      "name": "Watt-hour",
      "symbol": "Wh",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 3600,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One watt-hour is exactly 3600 J."
    },
    {
      "id": "kwh",
      "name": "Kilowatt-hour",
      "symbol": "kWh",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 3600000,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One kilowatt-hour is exactly 3 600 000 J."
    },
    {
      "id": "btu",
      "name": "British thermal unit",
      "symbol": "BTU",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 1055.05585262,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "The international table BTU is exactly 1055.05585262 J."
    },
    {
      "id": "ftlb",
      "name": "Foot-pound",
      "symbol": "ft·lb",
      "category": "energy",
      "categoryName": "Energy",
      "baseUnit": {
        "id": "j",
        "name": "Joule",
        "symbol": "J"
      },
      "factorToBase": 1.3558179483314003,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One foot-pound force is 0.3048 m times 4.4482216152605 N, which terminates exactly at 1.3558179483314004 J."
    },
    {
      "id": "w",
      "name": "Watt",
      "symbol": "W",
      "category": "power",
      "categoryName": "Power",
      "baseUnit": {
        "id": "w",
        "name": "Watt",
        "symbol": "W"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Base unit of the category."
    },
    {
      "id": "kw",
      "name": "Kilowatt",
      "symbol": "kW",
      "category": "power",
      "categoryName": "Power",
      "baseUnit": {
        "id": "w",
        "name": "Watt",
        "symbol": "W"
      },
      "factorToBase": 1000,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "mw",
      "name": "Megawatt",
      "symbol": "MW",
      "category": "power",
      "categoryName": "Power",
      "baseUnit": {
        "id": "w",
        "name": "Watt",
        "symbol": "W"
      },
      "factorToBase": 1000000,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Decimal multiple of the SI base unit, exact by definition of the SI prefixes."
    },
    {
      "id": "hp",
      "name": "Horsepower",
      "symbol": "hp",
      "category": "power",
      "categoryName": "Power",
      "baseUnit": {
        "id": "w",
        "name": "Watt",
        "symbol": "W"
      },
      "factorToBase": 745.6998715822702,
      "exact": false,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Mechanical horsepower is exactly 550 foot-pounds force per second, 745.69987158227022 W. The figure here is that value rounded to double precision."
    },
    {
      "id": "ps",
      "name": "Metric horsepower",
      "symbol": "PS",
      "category": "power",
      "categoryName": "Power",
      "baseUnit": {
        "id": "w",
        "name": "Watt",
        "symbol": "W"
      },
      "factorToBase": 735.49875,
      "exact": true,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "Metric horsepower (PS) is exactly 735.49875 W."
    },
    {
      "id": "btuh",
      "name": "BTU per hour",
      "symbol": "BTU/h",
      "category": "power",
      "categoryName": "Power",
      "baseUnit": {
        "id": "w",
        "name": "Watt",
        "symbol": "W"
      },
      "factorToBase": 0.29307107017,
      "exact": false,
      "source": "NIST Special Publication 811, Guide for the Use of the International System of Units",
      "sourceUrl": "https://www.nist.gov/pml/special-publication-811",
      "note": "One BTU per hour is exactly 1055.05585262/3600 W, a repeating decimal. The figure here is that exact ratio rounded."
    },
    {
      "id": "px",
      "name": "Pixel",
      "symbol": "px",
      "category": "typography",
      "categoryName": "Typography",
      "baseUnit": {
        "id": "px",
        "name": "Pixel",
        "symbol": "px"
      },
      "factorToBase": 1,
      "exact": true,
      "source": "W3C, CSS Values and Units Module (absolute lengths)",
      "sourceUrl": "https://www.w3.org/TR/css-values-4/#absolute-lengths",
      "note": "Base unit of the category. The CSS reference pixel, where 1 in = 96 px."
    },
    {
      "id": "rem",
      "name": "Rem",
      "symbol": "rem",
      "category": "typography",
      "categoryName": "Typography",
      "baseUnit": {
        "id": "px",
        "name": "Pixel",
        "symbol": "px"
      },
      "factorToBase": 16,
      "exact": null,
      "source": null,
      "sourceUrl": null,
      "note": "One rem is the document root font-size, which the page decides. 16 px is the common browser default rather than a defined value, so exactness cannot be asserted. Scale the result if the project sets a different root size."
    },
    {
      "id": "point",
      "name": "Point",
      "symbol": "pt",
      "category": "typography",
      "categoryName": "Typography",
      "baseUnit": {
        "id": "px",
        "name": "Pixel",
        "symbol": "px"
      },
      "factorToBase": 1.3333333333333333,
      "exact": false,
      "source": "W3C, CSS Values and Units Module (absolute lengths)",
      "sourceUrl": "https://www.w3.org/TR/css-values-4/#absolute-lengths",
      "note": "Defined exactly as 4/3 px (1 in = 96 px = 72 pt), a repeating decimal. The figure here is that exact ratio rounded."
    }
  ],
  "license": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "UnitGlide, https://unitglide.net"
}