area

{
  "id": "NISTq8",
  "unitsml_id": "q:area",
  "name": "area",
  "names": [
    {
      "value": "area",
      "lang": "en"
    },
    {
      "value": "superficie",
      "lang": "fr"
    }
  ],
  "short": "area",
  "type": "derived",
  "dimension": {
    "id": "NISTd8",
    "name": "area",
    "expression": "L2",
    "components": [
      {
        "key": "length",
        "symbol": "L",
        "power": 2
      }
    ],
    "dimensionless": false
  },
  "units": [
    {
      "id": "NISTu164",
      "name": "square yard",
      "symbol": "yd²"
    },
    {
      "id": "NISTu165",
      "name": "square mile",
      "symbol": "mi²"
    },
    {
      "id": "NISTu1e2/1",
      "name": "square meter",
      "symbol": "m²"
    },
    {
      "id": "NISTu283",
      "name": "circular mil",
      "symbol": "cmil"
    },
    {
      "id": "NISTu317",
      "name": "acre (based on US survey foot)",
      "symbol": "ac"
    },
    {
      "id": "NISTu42",
      "name": "are",
      "symbol": "a"
    },
    {
      "id": "NISTu43",
      "name": "barn",
      "symbol": "b"
    },
    {
      "id": "NISTu44",
      "name": "hectare",
      "symbol": "ha"
    },
    {
      "id": "NISTu45",
      "name": "square foot",
      "symbol": "ft²"
    },
    {
      "id": "NISTu46",
      "name": "square inch",
      "symbol": "in²"
    }
  ],
  "unit_count": 10,
  "identifiers": [
    {
      "type": "nist",
      "id": "NISTq8"
    },
    {
      "type": "unitsml",
      "id": "q:area"
    }
  ],
  "references": [
    {
      "type": "normative",
      "authority": "si-digital-framework",
      "uri": "http://si-digital-framework.org/quantities/AREA"
    },
    {
      "type": "informative",
      "authority": "qudt",
      "uri": "http://qudt.org/vocab/quantitykind/Area"
    }
  ]
}