Apparel SizeBra Size

FR Band to US Band Bra Band for Support Fit

Snapshot

80 FR Band equals 25.6 US Band.

  • Reference basis: This result uses the selected selected fit profile mapping as the profile basis.
  • Example: For 70 FR Band, the selected fit profile mapping returns 21.7 US Band 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.

25.6 US Band value

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API and AI agent access

FR Band to US Band Bra Band for Support Fit. fit: support-fit.

Machine-readable identifiers

Conversion family
bra-size
Source unit
fr-band
Target unit
us-band
Fit
support-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": "bra-size",
  "value": 80,
  "from": "fr-band",
  "to": "us-band",
  "parameters": {
    "fit": "support-fit"
  }
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "bra-size",
    "value": 80,
    "from": "fr-band",
    "to": "us-band",
    "result": {
      "raw": 25.5905511811,
      "display": "25.6"
    },
    "canonicalPath": "/apparel-size/bra-size/fr-band-to-us-band-for-support-fit/"
  }
}
API, OpenAPI and WebMCP documentation

Explanation

FR Band converts to US Band using underbust circumference in millimeters. Fit profile: Support Fit.

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

Method & Size Mapping

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

Common Conversion Values

FR Band valueUS Band value
70 21.7
75 23.6
80 25.6
85 27.6
90 29.5