
A Franklin half dollar contains approximately 0.36169 troy ounces of pure silver.
These coins were minted with a total weight of 12.50 grams and a composition of 90% silver and 10% copper. The 90% purity means that the actual silver weight within each coin is 11.25 grams. Converting this gram weight to troy ounces, the standard measurement for precious metals, results in the 0.36169 troy ounce figure. This silver content is standard for all U.S. half dollars, dimes, and quarters minted for circulation before 1965.


