{
  "source": "https://www.calculator.net/bra-size-calculator.html",
  "captured": "2026-09-25",
  "notes": [
    "Synthetic inch-input fixtures, not visitor measurements.",
    "Output labels are recorded as returned, not endorsed as universal brand conversions.",
    "Calculator.net keeps the same cup label in its displayed +4 row. That differs from Bra Atlas's declared padded-band comparison."
  ],
  "rows": [
    {
      "fixture": {
        "id": 1,
        "underbust": 28,
        "bust": 30,
        "note": "small band, 2in diff"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "28",
          "cup": "B"
        },
        {
          "system": "UK",
          "band": "28",
          "cup": "B"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "32",
          "cup": "B"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "32",
          "cup": "B"
        },
        {
          "system": "EU (EN 13402)",
          "band": "60 cm",
          "cup": "B"
        },
        {
          "system": "FR/BE/ES",
          "band": "75 cm",
          "cup": "B"
        },
        {
          "system": "Australia/New Zealand",
          "band": "too small to have size!",
          "cup": "B"
        }
      ]
    },
    {
      "fixture": {
        "id": 2,
        "underbust": 30,
        "bust": 34,
        "note": "4in diff"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "30",
          "cup": "D"
        },
        {
          "system": "UK",
          "band": "30 or dress code 6",
          "cup": "D"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "34",
          "cup": "D"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "34",
          "cup": "D"
        },
        {
          "system": "EU (EN 13402)",
          "band": "65 cm",
          "cup": "E"
        },
        {
          "system": "FR/BE/ES",
          "band": "80 cm",
          "cup": "E"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 8",
          "cup": "D"
        }
      ]
    },
    {
      "fixture": {
        "id": 3,
        "underbust": 32,
        "bust": 35,
        "note": "3in diff, odd bust"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "32",
          "cup": "C"
        },
        {
          "system": "UK",
          "band": "32 or dress code 8",
          "cup": "C"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "36",
          "cup": "C"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "36",
          "cup": "C"
        },
        {
          "system": "EU (EN 13402)",
          "band": "70 cm",
          "cup": "C"
        },
        {
          "system": "FR/BE/ES",
          "band": "85 cm",
          "cup": "C"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 10",
          "cup": "C"
        }
      ]
    },
    {
      "fixture": {
        "id": 4,
        "underbust": 33,
        "bust": 37,
        "note": "odd underbust, rounding test"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "34",
          "cup": "D"
        },
        {
          "system": "UK",
          "band": "34 or dress code 10",
          "cup": "D"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "38",
          "cup": "D"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "38",
          "cup": "D"
        },
        {
          "system": "EU (EN 13402)",
          "band": "75 cm",
          "cup": "E"
        },
        {
          "system": "FR/BE/ES",
          "band": "90 cm",
          "cup": "E"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 12",
          "cup": "D"
        }
      ]
    },
    {
      "fixture": {
        "id": 5,
        "underbust": 34,
        "bust": 38,
        "note": "4in diff, common size"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "34",
          "cup": "D"
        },
        {
          "system": "UK",
          "band": "34 or dress code 10",
          "cup": "D"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "38",
          "cup": "D"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "38",
          "cup": "D"
        },
        {
          "system": "EU (EN 13402)",
          "band": "75 cm",
          "cup": "E"
        },
        {
          "system": "FR/BE/ES",
          "band": "90 cm",
          "cup": "E"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 12",
          "cup": "D"
        }
      ]
    },
    {
      "fixture": {
        "id": 6,
        "underbust": 36,
        "bust": 41,
        "note": "5in diff, DD/E range"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "36",
          "cup": "DD/E"
        },
        {
          "system": "UK",
          "band": "36 or dress code 12",
          "cup": "DD"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "40",
          "cup": "DD/E"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "40",
          "cup": "DD"
        },
        {
          "system": "EU (EN 13402)",
          "band": "80 cm",
          "cup": "F"
        },
        {
          "system": "FR/BE/ES",
          "band": "95 cm",
          "cup": "F"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 14",
          "cup": "DD"
        }
      ]
    },
    {
      "fixture": {
        "id": 7,
        "underbust": 38,
        "bust": 44,
        "note": "6in diff, plus-size F range"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "38",
          "cup": "DDD/F"
        },
        {
          "system": "UK",
          "band": "38 or dress code 14",
          "cup": "E"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "42",
          "cup": "DDD/F"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "42",
          "cup": "E"
        },
        {
          "system": "EU (EN 13402)",
          "band": "85 cm",
          "cup": "G"
        },
        {
          "system": "FR/BE/ES",
          "band": "100 cm",
          "cup": "G"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 16",
          "cup": "E"
        }
      ]
    },
    {
      "fixture": {
        "id": 8,
        "underbust": 29,
        "bust": 33,
        "note": "odd small underbust, rounding"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "30",
          "cup": "D"
        },
        {
          "system": "UK",
          "band": "30 or dress code 6",
          "cup": "D"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "34",
          "cup": "D"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "34",
          "cup": "D"
        },
        {
          "system": "EU (EN 13402)",
          "band": "65 cm",
          "cup": "E"
        },
        {
          "system": "FR/BE/ES",
          "band": "80 cm",
          "cup": "E"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 8",
          "cup": "D"
        }
      ]
    },
    {
      "fixture": {
        "id": 9,
        "underbust": 40,
        "bust": 46,
        "note": "6in diff, larger band"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "40",
          "cup": "DDD/F"
        },
        {
          "system": "UK",
          "band": "40 or dress code 16",
          "cup": "E"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "44",
          "cup": "DDD/F"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "44",
          "cup": "E"
        },
        {
          "system": "EU (EN 13402)",
          "band": "90 cm",
          "cup": "G"
        },
        {
          "system": "FR/BE/ES",
          "band": "105 cm",
          "cup": "G"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 18",
          "cup": "E"
        }
      ]
    },
    {
      "fixture": {
        "id": 10,
        "underbust": 42,
        "bust": 48,
        "note": "6in diff, full-bust boundary"
      },
      "observed_labels": [
        {
          "system": "US/CA",
          "band": "42",
          "cup": "DDD/F"
        },
        {
          "system": "UK",
          "band": "42 or dress code 18",
          "cup": "E"
        },
        {
          "system": "US/CA (Underbust +4)*",
          "band": "46",
          "cup": "DDD/F"
        },
        {
          "system": "UK (Underbust +4)*",
          "band": "46",
          "cup": "E"
        },
        {
          "system": "EU (EN 13402)",
          "band": "95 cm",
          "cup": "G"
        },
        {
          "system": "FR/BE/ES",
          "band": "110 cm",
          "cup": "G"
        },
        {
          "system": "Australia/New Zealand",
          "band": "dress code 20",
          "cup": "E"
        }
      ]
    }
  ]
}