The Puck · Sizes
Which coins fit the Puck
The rule is simple: any coin from 17.9 mm to 38.6 mm across. That covers a US dime up to a Morgan or Peace silver dollar or a British crown, and world coins in the same range. One Puck adjusts to all of them.
If your coin is not listed, measure across it or look up its diameter. If the number falls inside the range, it fits.
| Coin | Diameter | Fits the Puck |
|---|---|---|
| US dime | 17.9 mm | Yes |
| US cent | 19.05 mm | Yes |
| US nickel | 21.2 mm | Yes |
| British sovereign | 22.05 mm | Yes |
| US quarter | 24.3 mm | Yes |
| US small dollar (Sacagawea, Presidential) | 26.5 mm | Yes |
| US half dollar (Kennedy, Franklin, Walking Liberty) | 30.6 mm | Yes |
| British India rupee | 30.5 mm | Yes |
| Morgan dollar | 38.1 mm | Yes |
| Peace dollar | 38.1 mm | Yes |
| Eisenhower dollar | 38.1 mm | Yes |
| British crown (such as the 1953 Coronation crown) | 38.6 mm | Yes |
| American Silver Eagle | 40.6 mm | No, too large |
| Most challenge coins | about 44 mm | No, too large |
Unusually shaped coins, such as hammered and ancient coins, sometimes work, but not always. A larger Puck for Silver Eagles, and a smaller one, are in development.