US nickel size — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/us-nickel/ (CC BY 4.0) Basis: United States Mint coin specifications Catalog version: 2026-10-20 Overall (mm): length 21.21, width 21.21, height 1.95 - US nickel: Ø21.21 mm, 1.95 mm thick, 5.0 g, edge plain. dimension value diameter 21.21 mm (0.84 in) thickness 1.95 mm mass 5.0 g edge plain 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-nickel/index.json API: https://xemstudio.com/api/geometry?object=us-nickel