{
 "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": "us-dollar-coin",
 "name": "US dollar coin size",
 "kind": "modern",
 "category": "Everyday objects",
 "group": "Coins",
 "year": null,
 "question": "What are the dimensions of a US dollar coin?",
 "tags": [
  "coin",
  "us coin",
  "dollar coin"
 ],
 "aliases": [
  "dollar coin diameter",
  "dollar coin size mm",
  "us dollar coin dimensions"
 ],
 "overall_mm": {
  "length": 26.49,
  "width": 26.49,
  "height": 2
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 1,
 "url": "https://xemstudio.com/objects/us-dollar-coin/",
 "sheet_txt": "https://xemstudio.com/objects/us-dollar-coin/sheet.txt",
 "sheet": {
  "basis": "United States Mint coin specifications",
  "overall_mm": {
   "length": 26.49,
   "width": 26.49,
   "height": 2
  },
  "notes": [
   "US dollar coin: Ø26.49 mm, 2 mm thick, 8.1 g, edge lettered."
  ],
  "table": {
   "columns": [
    "dimension",
    "value"
   ],
   "rows": [
    [
     "diameter",
     "26.49 mm (1.04 in)"
    ],
    [
     "thickness",
     "2 mm"
    ],
    [
     "mass",
     "8.1 g"
    ],
    [
     "edge",
     "lettered"
    ]
   ]
  }
 },
 "sheet_text": "US dollar coin size — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/us-dollar-coin/  (CC BY 4.0)\nBasis: United States Mint coin specifications\nCatalog version: 2026-10-20\n\nOverall (mm): length 26.49, width 26.49, height 2.0\n- US dollar coin: Ø26.49 mm, 2 mm thick, 8.1 g, edge lettered.\n\ndimension  value\ndiameter  26.49 mm (1.04 in)\nthickness  2 mm\nmass  8.1 g\nedge  lettered\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- US Mint: Coin specifications — web — Publisher's page; dimensions are facts — https://www.usmint.gov/learn/coin-and-medal-programs/coin-specifications\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/us-dollar-coin/index.json\nAPI: https://xemstudio.com/api/geometry?object=us-dollar-coin\n",
 "sources": [
  {
   "publisher": "US Mint",
   "title": "Coin specifications",
   "url": "https://www.usmint.gov/learn/coin-and-medal-programs/coin-specifications",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "free-files",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "coins-us-and-euro",
  "us-penny",
  "us-nickel",
  "us-dime",
  "us-quarter",
  "us-half-dollar"
 ],
 "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 US dollar coin?",
   "a": "Ø26.49 × 2 mm."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "us-dollar-coin-disc",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/us-dollar-coin/us-dollar-coin-disc.step",
   "stl": "https://xemstudio.com/files/hardware/us-dollar-coin/us-dollar-coin-disc.stl",
   "note": "Ø26.49 × 2 mm disc"
  }
 ],
 "markdown": "https://xemstudio.com/objects/us-dollar-coin/index.md"
}