Apparel SizeHat Size

Head Circumference (cm) to EU Size Hat Size for Loose Fit

Snapshot

58 Head Circumference (cm) equals 58 EU Size.

  • Reference basis: This result uses the selected cm mapping as the profile basis.
  • Example: For 54 Head Circumference (cm), the cm mapping returns 54 EU Size under the same fit assumptions.

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

58 EU Size value

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API and AI agent access

Head Circumference (cm) to EU Size Hat Size for Loose Fit. fit: loose-fit.

Machine-readable identifiers

Conversion family
hat-size
Source unit
circumference-centimeters
Target unit
eu-size
Fit
loose-fit

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "hat-size",
  "value": 58,
  "from": "circumference-centimeters",
  "to": "eu-size",
  "parameters": {
    "fit": "loose-fit"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "hat-size",
    "value": 58,
    "from": "circumference-centimeters",
    "to": "eu-size",
    "result": {
      "raw": 58,
      "display": "58"
    },
    "canonicalPath": "/apparel-size/hat-size/circumference-centimeters-to-eu-size-for-loose-fit/"
  }
}
API, OpenAPI and WebMCP documentation

Explanation

Head Circumference (cm) converts to EU Size using head circumference in millimeters. Fit profile: Loose Fit.

Model estimate based on head circumference, not a fit guarantee. No manufacturer chart is established for this model; compare your measurement with the brand’s chart.

Method & Size Mapping

  • Model basis: output depends on the selected fit profile and follows the same fit mapping in both directions.
  • Profile reference: cm.
  • Consistency rule: calculator output and table values keep the same fit profile in both directions.

Common Conversion Values

Head Circumference (cm) valueEU Size value
54 54
56 56
58 58
60 60
62 62