Library › Everyday objects › Coins ·
US penny size
What are the dimensions of a US penny? · Modern device · basis: United States Mint coin specifications
Also called: penny diameter, penny size mm, us penny dimensions
Exact dimensions. True size, with no printing tolerance added.
- length
- 19.05 mm
- width
- 19.05 mm
- height
- 1.52 mm
Notes
- US penny: Ø19.05 mm, 1.52 mm thick, 2.5 g, edge plain.
US penny size size chart
| dimension | value |
|---|---|
| diameter | 19.05 mm (0.75 in) |
| thickness | 1.52 mm |
| mass | 2.5 g |
| edge | plain |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| US Mint | Coin specifications | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=us-penny

Fits with
Free
Coin sizes: US penny to dollar and euro coins (diameter × thickness)14 sizes★ 14 filesFree
US nickel size21.21×21.21×1.95 mm★ 1 fileFree
US dime size17.91×17.91×1.35 mm★ 1 fileFree
US quarter size24.26×24.26×1.75 mm★ 1 fileFree
US half dollar size30.61×30.61×2.15 mm★ 1 fileFree
US dollar coin size26.49×26.49×2.0 mm★ 1 file






Questions
How big is a US penny?
Ø19.05 × 1.52 mm.