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Message:: [QUOTE="Hobo, post: 503363, member: 11521"]It's really simple if you break it down. You multiply the amount of PM (precious metal) in the coin by the spot price.  Let's calculate the melt value of a US 90% Silver Half Dollar. The weight is 12.50 g. Since the coin is 90% silver it has 11.25 g of silver. [12.50 g X 0.90 = 11.25 g]  Now let's convert the weight in grams to the weight in troy ounces. (Precious metals are weighed in troy ounces in the US.)  We know 1 troy ounce = 31.1035 g 11.25 g / 31.1035 g/oz = 0.3617 ounce  Silver closed today at $11.09. So melt value of a US 90% silver Half Dollar is: 0.3617 oz X $11.09/oz = $4.01   You might find this shortcut easier for US 90% silver coins:  Multiply the face value of the US 90% silver coin by 0.724 and multiply that by the spot price of silver.  So melt value for a 90% silver Half Dollar is: $0.50 X 0.724 X $11.09 = $4.01 NOTE: This formula does not work for 90% Silver Dollars.[/QUOTE]