length

{
  "id": "NISTq1",
  "unitsml_id": "q:length",
  "name": "length",
  "names": [
    {
      "value": "length",
      "lang": "en"
    },
    {
      "value": "longueur",
      "lang": "fr"
    }
  ],
  "short": "length",
  "type": "base",
  "dimension": {
    "id": "NISTd1",
    "name": "length",
    "expression": "L",
    "components": [
      {
        "key": "length",
        "symbol": "L",
        "power": 1
      }
    ],
    "dimensionless": false
  },
  "units": [
    {
      "id": "NISTu1",
      "name": "metre",
      "symbol": "m"
    },
    {
      "id": "NISTu122",
      "name": "micron",
      "symbol": "μ"
    },
    {
      "id": "NISTu123",
      "name": "mil (length)",
      "symbol": "thou"
    },
    {
      "id": "NISTu131",
      "name": "nautical mile",
      "symbol": "M"
    },
    {
      "id": "NISTu182",
      "name": "light year",
      "symbol": "l.y."
    },
    {
      "id": "NISTu183",
      "name": "astronomical unit",
      "symbol": "ua"
    },
    {
      "id": "NISTu184",
      "name": "parsec",
      "symbol": "pc"
    },
    {
      "id": "NISTu249",
      "name": "atomic unit of length",
      "symbol": "𝑎₀"
    },
    {
      "id": "NISTu26",
      "name": "fermi",
      "symbol": "fermi"
    },
    {
      "id": "NISTu278",
      "name": "pica (computer)",
      "symbol": "pc"
    },
    {
      "id": "NISTu279",
      "name": "pica (printer's)",
      "symbol": "pc"
    },
    {
      "id": "NISTu280",
      "name": "point (computer)",
      "symbol": "pt"
    },
    {
      "id": "NISTu281",
      "name": "rod (based on US survey foot)",
      "symbol": "rd"
    },
    {
      "id": "NISTu282",
      "name": "fathom (based on US survey foot)",
      "symbol": "fath"
    },
    {
      "id": "NISTu290",
      "name": "natural unit of length",
      "symbol": "ƛ_C"
    },
    {
      "id": "NISTu310",
      "name": "chain (based on US survey foot)",
      "symbol": "ch"
    },
    {
      "id": "NISTu311",
      "name": "link (based on US survey foot)",
      "symbol": "lnk"
    },
    {
      "id": "NISTu312",
      "name": "furlong (based on US survey foot)",
      "symbol": "fur"
    },
    {
      "id": "NISTu313",
      "name": "mile (based on US survey foot)",
      "symbol": "mi"
    },
    {
      "id": "NISTu314",
      "name": "yard (based on US survey foot)",
      "symbol": "yd"
    },
    {
      "id": "NISTu315",
      "name": "foot (based on US survey foot)",
      "symbol": "ft"
    },
    {
      "id": "NISTu316",
      "name": "inch (based on US survey foot)",
      "symbol": "in"
    },
    {
      "id": "NISTu344",
      "name": "point (printer's)",
      "symbol": "pt"
    },
    {
      "id": "NISTu361",
      "name": "microinch",
      "symbol": "μin"
    },
    {
      "id": "NISTu376",
      "name": "light week",
      "symbol": "l.w."
    },
    {
      "id": "NISTu377",
      "name": "light hour",
      "symbol": "l.h."
    },
    {
      "id": "NISTu378",
      "name": "light minute",
      "symbol": "l.m."
    },
    {
      "id": "NISTu379",
      "name": "light second",
      "symbol": "l.s."
    },
    {
      "id": "NISTu39",
      "name": "ångström",
      "symbol": "Å"
    },
    {
      "id": "NISTu78",
      "name": "foot",
      "symbol": "′"
    },
    {
      "id": "NISTu8",
      "name": "inch",
      "symbol": "″"
    },
    {
      "id": "NISTu83",
      "name": "mile",
      "symbol": "mi"
    },
    {
      "id": "NISTu84",
      "name": "yard",
      "symbol": "yd"
    }
  ],
  "unit_count": 33,
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTq1"
    },
    {
      "type": "unitsml",
      "id": "q:length"
    }
  ],
  "references": [
    {
      "type": "normative",
      "authority": "si-digital-framework",
      "uri": "http://si-digital-framework.org/quantities/LENG"
    },
    {
      "type": "informative",
      "authority": "qudt",
      "uri": "http://qudt.org/vocab/quantitykind/Length"
    }
  ]
}