{
  "source": "https://www.abrathatfits.org/calculator (form POST, loose=snug=tight=underbust, standing=leaning=lying=bust, inches, AFAB)",
  "date": "2026-09-25",
  "rows": [
    {
      "fixture": {
        "id": 1,
        "underbust": 28,
        "bust": 30,
        "note": "small band, 2in diff"
      },
      "UK": "28B UK",
      "US": "28B US",
      "EU": "60B EU",
      "FR": "75B Fr",
      "AU": "6B Au/NZ",
      "JP": "60B/C JP"
    },
    {
      "fixture": {
        "id": 2,
        "underbust": 30,
        "bust": 34,
        "note": "4in diff"
      },
      "UK": "30D UK",
      "US": "30D US",
      "EU": "65D EU",
      "FR": "80D Fr",
      "AU": "8D Au/NZ",
      "JP": "65E JP"
    },
    {
      "fixture": {
        "id": 3,
        "underbust": 32,
        "bust": 35,
        "note": "3in diff, odd bust"
      },
      "UK": "32C UK",
      "US": "32C US",
      "EU": "70C EU",
      "FR": "85C Fr",
      "AU": "10C Au/NZ",
      "JP": "70D JP"
    },
    {
      "fixture": {
        "id": 4,
        "underbust": 33,
        "bust": 37,
        "note": "odd underbust, rounding test"
      },
      "UK": "34C/D UK",
      "US": "34C/D US",
      "EU": "75C/D EU",
      "FR": "90C/D Fr",
      "AU": "12C/D Au/NZ",
      "JP": "75D/E JP"
    },
    {
      "fixture": {
        "id": 5,
        "underbust": 34,
        "bust": 38,
        "note": "4in diff, common size"
      },
      "UK": "34D UK",
      "US": "34D US",
      "EU": "75D EU",
      "FR": "90D Fr",
      "AU": "12D Au/NZ",
      "JP": "75E JP"
    },
    {
      "fixture": {
        "id": 6,
        "underbust": 36,
        "bust": 41,
        "note": "5in diff, DD/E range"
      },
      "UK": "36DD UK",
      "US": "36DD US",
      "EU": "80E EU",
      "FR": "95E Fr",
      "AU": "14DD Au/NZ",
      "JP": "80F/G JP"
    },
    {
      "fixture": {
        "id": 7,
        "underbust": 38,
        "bust": 44,
        "note": "6in diff, plus-size F range"
      },
      "UK": "38E UK",
      "US": "38DDD US",
      "EU": "85F EU",
      "FR": "100F Fr",
      "AU": "16E Au/NZ",
      "JP": "85G/H JP"
    },
    {
      "fixture": {
        "id": 8,
        "underbust": 29,
        "bust": 33,
        "note": "odd small underbust, rounding"
      },
      "UK": "30C/D UK",
      "US": "30C/D US",
      "EU": "65C/D EU",
      "FR": "80C/D Fr",
      "AU": "8C/D Au/NZ",
      "JP": "65D/E JP"
    },
    {
      "fixture": {
        "id": 9,
        "underbust": 40,
        "bust": 46,
        "note": "6in diff, larger band"
      },
      "UK": "40E UK",
      "US": "40DDD US",
      "EU": "90F EU",
      "FR": "105F Fr",
      "AU": "18E Au/NZ",
      "JP": "90G/H JP"
    },
    {
      "fixture": {
        "id": 10,
        "underbust": 42,
        "bust": 48,
        "note": "6in diff, full-bust boundary"
      },
      "UK": "42E UK",
      "US": "42DDD US",
      "EU": "95F EU",
      "FR": "110F Fr",
      "AU": "20E Au/NZ",
      "JP": "95G/H JP"
    },
    {
      "fixture": {
        "id": 11,
        "underbust": 31,
        "bust": 37
      },
      "UK": "32DD/E UK",
      "US": "32DD/DDD US",
      "EU": "70E/F EU",
      "FR": "85E/F Fr",
      "AU": "10DD/E Au/NZ",
      "JP": "70G JP"
    },
    {
      "fixture": {
        "id": 12,
        "underbust": 28,
        "bust": 35
      },
      "UK": "28F UK",
      "US": "28G US",
      "EU": "60G EU",
      "FR": "75G Fr",
      "AU": "6F Au/NZ",
      "JP": "60I JP"
    },
    {
      "fixture": {
        "id": 13,
        "underbust": 30,
        "bust": 38
      },
      "UK": "30FF UK",
      "US": "30H US",
      "EU": "65H EU",
      "FR": "80H Fr",
      "AU": "8G Au/NZ",
      "JP": null
    },
    {
      "fixture": {
        "id": 14,
        "underbust": 32,
        "bust": 40
      },
      "UK": "32FF UK",
      "US": "32H US",
      "EU": "70H EU",
      "FR": "85H Fr",
      "AU": "10G Au/NZ",
      "JP": null
    },
    {
      "fixture": {
        "id": 15,
        "underbust": 34,
        "bust": 43
      },
      "UK": "34G UK",
      "US": "34I US",
      "EU": "75I EU",
      "FR": "90I Fr",
      "AU": "12H Au/NZ",
      "JP": null
    },
    {
      "fixture": {
        "id": 16,
        "underbust": 36,
        "bust": 46
      },
      "UK": "36GG UK",
      "US": "36J US",
      "EU": "80J EU",
      "FR": "95J Fr",
      "AU": "14HH Au/NZ",
      "JP": null
    },
    {
      "fixture": {
        "id": 17,
        "underbust": 30,
        "bust": 34.5
      },
      "UK": "30D/DD UK",
      "US": "30D/DD US",
      "EU": "65D/E EU",
      "FR": "80D/E Fr",
      "AU": "8D/DD Au/NZ",
      "JP": "65E/F JP"
    },
    {
      "fixture": {
        "id": 18,
        "underbust": 32,
        "bust": 39
      },
      "UK": "32F UK",
      "US": "32G US",
      "EU": "70G EU",
      "FR": "85G Fr",
      "AU": "10F Au/NZ",
      "JP": "70I JP"
    }
  ],
  "notes": [
    "Synthetic test inputs, not visitor measurements.",
    "All three underbust inputs were set equal; all three bust inputs were set equal. This does not test equivalence on six independent measurements.",
    "Full label comparisons cover UK, US, EU, FR and AU. Japan is approximate and is not a full-parity claim.",
    "A null value means NO DATA in the saved capture, not that a size cannot exist."
  ]
}