Coin Specifications Reference
Look up common US coin denominations by diameter weight composition edge and mint years.
Physical specifications of current and historical US coins — weight, diameter, and composition. For live melt or collector value, use a numismatic pricing service, since spot metal prices change constantly.
About this tool
Coin Specifications Reference is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
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