
That's a great question! The value of a silver Kennedy half dollar really depends on its year, as the silver content changed over time. The provided search results point to some excellent resources for coin values, like Greysheet, but don't contain the specific price details, so I'll give you a general breakdown.
The most valuable Kennedy half dollars in terms of silver content are from 1964. These coins are made of 90% silver. Their base value is tied directly to the current market price of silver, often called their "melt value," which is typically several dollars. Uncirculated or high-grade 1964 examples can be worth even more to collectors.
From 1965 to 1970, the composition was changed, and these half dollars contain 40% silver. Because they have less silver, their melt value is lower than the 1964 coin, but they are still worth more than their 50-cent face value.
After 1970, most Kennedy half dollars intended for circulation were made of a copper-nickel blend and contain no silver at all, so they are generally worth only their face value. The exception is certain silver proof coins and special issues made for collectors in the following years, which are typically 90% silver. To know the exact value of your coin, the first step is always to check the date