{
 "version": "2026-10-20",
 "license": "Dimension sheets are written by Xem Studio from the cited sources and are free to use (CC BY 4.0, attribute 'Xem Studio'). Linked files belong to their publishers under the license shown; Xem Studio does not host them. 'license_verified: false' means the license shown is from memory or the publisher's page as last read and should be confirmed at the link before commercial use.",
 "slug": "golf-ball",
 "name": "Golf ball size: Ø42.67 mm minimum, 45.93 g maximum (R&A / USGA)",
 "kind": "standard",
 "category": "Everyday objects",
 "group": "Sports",
 "year": null,
 "question": "What is the diameter of a golf ball?",
 "tags": [
  "golf",
  "sports",
  "ball"
 ],
 "aliases": [
  "golf ball diameter",
  "golf ball dimensions",
  "golf ball size mm"
 ],
 "overall_mm": {
  "length": 42.67,
  "width": 42.67,
  "height": 42.67
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/golf-ball/",
 "sheet_txt": "https://xemstudio.com/objects/golf-ball/sheet.txt",
 "sheet": {
  "basis": "R&A Rules of Equipment Part 4 (same limits in the USGA rules)",
  "overall_mm": {
   "length": 42.67,
   "width": 42.67,
   "height": 42.67
  },
  "notes": [
   "Diameter not less than 1.680 in (42.67 mm); weight not more than 1.620 oz (45.93 g).",
   "Dimples are not modelled: holders, tees and displays need only the envelope; give 0.5 mm clearance."
  ],
  "table": {
   "columns": [
    "limit",
    "inch / oz",
    "mm / g"
   ],
   "rows": [
    [
     "minimum diameter",
     "1.680 in",
     42.67
    ],
    [
     "maximum weight",
     "1.620 oz",
     45.93
    ]
   ]
  }
 },
 "sheet_text": "Golf ball size: Ø42.67 mm minimum, 45.93 g maximum (R&A / USGA) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/golf-ball/  (CC BY 4.0)\nBasis: R&A Rules of Equipment Part 4 (same limits in the USGA rules)\nCatalog version: 2026-10-20\n\nOverall (mm): length 42.67, width 42.67, height 42.67\n- Diameter not less than 1.680 in (42.67 mm); weight not more than 1.620 oz (45.93 g).\n- Dimples are not modelled: holders, tees and displays need only the envelope; give 0.5 mm clearance.\n\nlimit  inch / oz  mm / g\nminimum diameter  1.680 in  42.67\nmaximum weight  1.620 oz  45.93\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- R&A: Rules of Equipment, Part 4: conformance of balls — web — Publisher's page; dimensions are facts — https://www.randa.org/roe/the-rules-of-equipment/part-4-conformance-of-balls\n- USGA: Equipment rules: balls — web — Publisher's page; dimensions are facts — https://www.usga.org/etc/designs/usga/content/rule-book/clubs-balls/rule-14611.html\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/golf-ball/index.json\nAPI: https://xemstudio.com/api/geometry?object=golf-ball\n",
 "sources": [
  {
   "publisher": "R&A",
   "title": "Rules of Equipment, Part 4: conformance of balls",
   "url": "https://www.randa.org/roe/the-rules-of-equipment/part-4-conformance-of-balls",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "USGA",
   "title": "Equipment rules: balls",
   "url": "https://www.usga.org/etc/designs/usga/content/rule-book/clubs-balls/rule-14611.html",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
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  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "beverage-cans"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "How big is a golf ball?",
   "a": "At least 42.67 mm (1.68 in) across."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "golf-ball-42.67",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/golf-ball/golf-ball-42.67.step",
   "stl": "https://xemstudio.com/files/hardware/golf-ball/golf-ball-42.67.stl",
   "note": "Golf ball envelope: Ø42.67 mm sphere (minimum legal diameter)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/golf-ball/index.md"
}