How much silver is in a US dime?

Answer 1

1964 and older US dimes have 90% silver

A silver dime from the United States, minted between 1873 and 1964, has 0.0723 troy ounces of silver (earlier silver dimes had 0.0720 troy ounces between 1853 and 1872, and 0.0773 troy ounces prior to that). Thus its "melt value" as of January 2011 (with silver around $30 per troy ounce) is $2.25. You should expect to be able to buy a common-dated silver Roosevelt dime in circulated condition at about a 10-20% premium over melt, and should expect to be able to sell such a coin to a dealer at a 10-20% discount to melt.

Any circulation-strike dime dated 1965 and later is made of copper-nickel, not silver, and has no extra value unless it's in uncirculated or proof condition.