The 1 oz US Gold Eagle Coin Value calculator computes the value of 1 ounce U.S. Gold Eagle coins based on their weight, gold content and a numismatic percent adder.
INSTRUCTIONS: Enter the following:
(n) Number of Coins
(NV) Percent Numismatic Value Adder
Market Value (MV): The calculator returns the market value and the bullion melt value of the coin(s) in U.S. dollars. However, this can be automatically converted to other currency units via the pull-down menu.
The Math / Science
The purity of the US Gold Eagle coins is .9167 pure. This calculator uses that purity, the weight of the coin, and the current spot price of gold to compute a bullion value per gold coin. It then ads a numismatic adder per coin and then multiplies it by the number of coins.