{
 "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": "magsafe-and-watch-chargers",
 "name": "MagSafe charger puck and Apple Watch charger dimensions, MagSafe case thickness limit",
 "kind": "modern",
 "category": "Electronics",
 "group": "Chargers & cables",
 "year": null,
 "question": "What is the diameter of the MagSafe charger?",
 "tags": [
  "magsafe",
  "apple watch",
  "charger",
  "dock",
  "stand",
  "qi2"
 ],
 "aliases": [
  "magsafe charger diameter",
  "magsafe puck dimensions",
  "apple watch charger size",
  "magsafe stand 3d print",
  "magsafe case thickness"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "free-files",
 "les": false,
 "free_files": 3,
 "url": "https://xemstudio.com/objects/magsafe-and-watch-chargers/",
 "sheet_txt": "https://xemstudio.com/objects/magsafe-and-watch-chargers/sheet.txt",
 "sheet": {
  "basis": "Caliper measurements from a charger review site, a teardown and makers (MagSafe 25 W); Apple's accessory guidelines as reported by the press; Apple product listings for cable lengths",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "MagSafe 25 W charger (2024+): Ø55.4–55.5 mm, 4.45–4.53 mm thick (three independent caliper measurements); braided cable about Ø2.35, 1 m or 2 m.",
   "Original 15 W MagSafe charger: makers report it slightly larger and thicker (about Ø56 × 5.4) but no reliable measurement is published; measure yours before cutting a press-fit pocket.",
   "MagSafe accessories (Apple's guidelines, as reported): case thickness over the magnet ring 2.0 mm recommended, 2.1 mm maximum; self-alignment within 1.55 mm; removal force 800–1,100 gf.",
   "Apple Watch magnetic fast charger: commonly given as Ø27.9 × 6.3 mm with a radial cable exit; Apple does not publish it, so check yours. The older puck is about 2 mm thicker (maker report). Cable 1 m.",
   "Inserts (free STL): the puck face sits flush, the cable leaves through the slot; glue into a stand or screw through the floor."
  ],
  "table": {
   "columns": [
    "item",
    "diameter_mm",
    "thickness_mm"
   ],
   "rows": [
    [
     "MagSafe charger 25 W",
     "55.4–55.5",
     "4.45–4.53"
    ],
    [
     "MagSafe charger 15 W (unverified)",
     "≈56",
     "≈5.4"
    ],
    [
     "Apple Watch fast charger (unverified)",
     27.9,
     6.3
    ],
    [
     "MagSafe case limit over the ring",
     null,
     "2.0 rec. / 2.1 max"
    ]
   ]
  }
 },
 "sheet_text": "MagSafe charger puck and Apple Watch charger dimensions, MagSafe case thickness limit — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/magsafe-and-watch-chargers/  (CC BY 4.0)\nBasis: Caliper measurements from a charger review site, a teardown and makers (MagSafe 25 W); Apple's accessory guidelines as reported by the press; Apple product listings for cable lengths\nCatalog version: 2026-10-20\n\nSizes: see table below\n- MagSafe 25 W charger (2024+): Ø55.4–55.5 mm, 4.45–4.53 mm thick (three independent caliper measurements); braided cable about Ø2.35, 1 m or 2 m.\n- Original 15 W MagSafe charger: makers report it slightly larger and thicker (about Ø56 × 5.4) but no reliable measurement is published; measure yours before cutting a press-fit pocket.\n- MagSafe accessories (Apple's guidelines, as reported): case thickness over the magnet ring 2.0 mm recommended, 2.1 mm maximum; self-alignment within 1.55 mm; removal force 800–1,100 gf.\n- Apple Watch magnetic fast charger: commonly given as Ø27.9 × 6.3 mm with a radial cable exit; Apple does not publish it, so check yours. The older puck is about 2 mm thicker (maker report). Cable 1 m.\n- Inserts (free STL): the puck face sits flush, the cable leaves through the slot; glue into a stand or screw through the floor.\n\nitem  diameter_mm  thickness_mm\nMagSafe charger 25 W  55.4–55.5  4.45–4.53\nMagSafe charger 15 W (unverified)  ≈56  ≈5.4\nApple Watch fast charger (unverified)  27.9  6.3\nMagSafe case limit over the ring  None  2.0 rec. / 2.1 max\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- ChargerLAB: Review of the Apple 25 W MagSafe charger (caliper measurements) — web — Publisher's page; dimensions are facts — https://chargerlab.com/review-of-apple-25w-magsafe-charger\n- ChargerLAB: Teardown of the Apple 25 W MagSafe charger — web — Publisher's page; dimensions are facts — https://chargerlab.com/teardown-of-apple-25w-magsafe-charger-hk-a2580\n- MakerWorld (maker measurement): MagSafe 25 W puck holder: 55.49 × 4.53 — web — Publisher's page; dimensions are facts — https://www.makerworld.com/en/models/897648\n- 9to5Mac: Apple's accessory design guidelines: MagSafe details — web — Publisher's page; dimensions are facts — https://9to5mac.com/2020/11/02/apple-updates-its-accessory-design-guidelines-with-new-magsafe-details/\n- Apple: MagSafe Charger (1 m) — web — Publisher's page; dimensions are facts — https://apple.com/shop/product/MX6X3LL/A/magsafe-charger-1-m\n- Printables (maker notes): MagSafe phone and watch stand — web — Publisher's page; dimensions are facts — https://www.printables.com/model/996909-15w-magsafe-phone-and-watch-stand\n\nFree files (CC BY 4.0, Xem Studio; STEP + STL, 3 parts): https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/index.json\nAPI: https://xemstudio.com/api/geometry?object=magsafe-and-watch-chargers\n",
 "sources": [
  {
   "publisher": "ChargerLAB",
   "title": "Review of the Apple 25 W MagSafe charger (caliper measurements)",
   "url": "https://chargerlab.com/review-of-apple-25w-magsafe-charger",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "ChargerLAB",
   "title": "Teardown of the Apple 25 W MagSafe charger",
   "url": "https://chargerlab.com/teardown-of-apple-25w-magsafe-charger-hk-a2580",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "MakerWorld (maker measurement)",
   "title": "MagSafe 25 W puck holder: 55.49 × 4.53",
   "url": "https://www.makerworld.com/en/models/897648",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "9to5Mac",
   "title": "Apple's accessory design guidelines: MagSafe details",
   "url": "https://9to5mac.com/2020/11/02/apple-updates-its-accessory-design-guidelines-with-new-magsafe-details/",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Apple",
   "title": "MagSafe Charger (1 m)",
   "url": "https://apple.com/shop/product/MX6X3LL/A/magsafe-charger-1-m",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "Printables (maker notes)",
   "title": "MagSafe phone and watch stand",
   "url": "https://www.printables.com/model/996909-15w-magsafe-phone-and-watch-stand",
   "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": [
  "iphone-17-pro",
  "apple-watch-series-10-11-46-mm",
  "usb-c-receptacle"
 ],
 "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": "What size is the MagSafe charger?",
   "a": "The 25 W MagSafe puck is about 55.5 mm across and 4.5 mm thick."
  },
  {
   "q": "How thick can a MagSafe case be?",
   "a": "Apple recommends 2.0 mm over the magnet ring, 2.1 mm maximum."
  }
 ],
 "files_license": null,
 "offers": [
  {
   "file": "magsafe-25w-puck-envelope",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/magsafe-25w-puck-envelope.step",
   "stl": "https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/magsafe-25w-puck-envelope.stl",
   "note": "MagSafe 25 W charger puck envelope Ø55.5 × 4.5 mm"
  },
  {
   "file": "magsafe-25w-dock-insert",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/magsafe-25w-dock-insert.step",
   "stl": "https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/magsafe-25w-dock-insert.stl",
   "note": "Dock insert for the MagSafe 25 W puck: Ø55.8 pocket 4.6 deep, 3 mm cable slot"
  },
  {
   "file": "watch-charger-dock-insert",
   "formats": [
    "step",
    "stl"
   ],
   "price_usd": 0,
   "license": "CC BY 4.0 (Xem Studio)",
   "step": "https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/watch-charger-dock-insert.step",
   "stl": "https://xemstudio.com/files/hardware/magsafe-and-watch-chargers/watch-charger-dock-insert.stl",
   "note": "Dock insert for the Apple Watch fast charger puck: Ø28.2 pocket 6.4 deep (check your puck: see notes)"
  }
 ],
 "markdown": "https://xemstudio.com/objects/magsafe-and-watch-chargers/index.md"
}