US dollar coin size — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/us-dollar-coin/  (CC BY 4.0)
Basis: United States Mint coin specifications
Catalog version: 2026-10-20

Overall (mm): length 26.49, width 26.49, height 2.0
- US dollar coin: Ø26.49 mm, 2 mm thick, 8.1 g, edge lettered.

dimension  value
diameter  26.49 mm (1.04 in)
thickness  2 mm
mass  8.1 g
edge  lettered

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- US Mint: Coin specifications — web — Publisher's page; dimensions are facts — https://www.usmint.gov/learn/coin-and-medal-programs/coin-specifications

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/us-dollar-coin/index.json
API: https://xemstudio.com/api/geometry?object=us-dollar-coin