Live Metal Spot Price as of June 16, 2021: Silver is $27.80 per ounce, $.89 per gram, $893.79 per kilo. Get a postage scale and weigh how much you have to get a better idea how much your silver is worth. Kennedy Half-Dollars minted 1965–1970, and 1976, as well as Eisenhower Silver Dollars minted in the years 1971-1974, and 1976 are 40% silver. Roosevelt and Mercury Dimes, Washington Quarters, and Walking Liberty Franklin and Kennedy Half-Dollars minted in 1964 and earlier are 90% silver. Since coins are not 100% pure silver the value by weight will be a little less.