{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/electrical.awg_to_mm.input.json",
  "title": "AWG to mm / mm² — input",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "awg": {
      "type": [
        "number",
        "string"
      ],
      "description": "AWG gauge: 12, \"1/0\", \"4/0\", or legacy −3…0. Legacy UI alias: a"
    },
    "a": {
      "type": [
        "number",
        "string"
      ],
      "description": "Legacy alias for awg (unit-convert / chart UI)"
    },
    "field": {
      "type": "string",
      "enum": [
        "mm",
        "mm2"
      ],
      "description": "mm = primary diameter; mm2 = primary round area πd²/4 (default mm). Lookup always returns both."
    }
  },
  "required": [
    "awg"
  ],
  "description": "Look up American Wire Gauge geometry: unrounded ASTM B258 geometric progression (primary) plus Table 1 SI standard nominals for integer 4/0–56; copper resistance at 20 °C; educational NFPA 70–style ampacity reference (edition not pinned). Accepts 12, 1/0, 4/0, or legacy −3…0. (calculation_version 1.5.0)"
}