Hello there! That's a great question about a very popular and historic coin.
It's a common point of confusion, but the Bicentennial coin with John F. Kennedy on it is actually a half dollar, not a dollar. The Bicentennial dollar from that same time featured President Eisenhower. It's an easy mix-up to make! The provided search results refer to this Kennedy half dollar, but they don't give specific price details, so I'll answer based on general coin knowledge.
The value of your 1776-1976 Kennedy half dollar really depends on which version you have. The vast majority of these coins were made for general circulation and are composed of a copper-nickel clad. These are extremely common and are typically only worth their face value of 50 cents. If one is in pristine, uncirculated condition, a collector might pay a couple of dollars for it.
However, the U.S. Mint also struck a special collector's version made of 40% silver. These are the more valuable ones. Their worth is primarily based on the melt value of their silver content, which usually amounts to a few dollars, depending on the current market price of silver. A coin dealer or collector might pay a small premium over this melt value, especially for a coin in excellent shape.
So, in short, the circulating version is worth about 50 cents, while the 40% silver version is worth a few dollars. To know for sure, you can check the edge of the coin; if you see a copper-colored stripe, it's the standard clad version. The silver one will have a more uniform, silvery-white edge.
