Depends on its date. There are no rare JFK halves. You might get $4 from a dealer for a 1964 one because they're 90% silver, $1.50 for a 40% silver one minted from 1965 to 1970. Anything newer is copper-nickel and has no added value.
You can sell it to a coin dealer, a cash-for-gold shop, perhaps a jewelry store, a pawn shop, or online though sites like eBay.
Take the to the bank or to a coin dealer.
Try eBay.
These sell for 10-20 in online auctions.
Any coin dealer or buyer of scrap gold & silver.
There is no silver in a 1972 US half dollar.
a half dollar is a us coin that is half a dollar so 50 cents it is bigger than a quarter
a half dollar is a us coin that is half a dollar so 50 cents it is bigger than a quarter
There are .3617 troy ounces in a 1962 US half dollar.
A US half dollar with a date of 1979 is a Kennedy half dollar not a liberty half dollar. The coin has no silver and is only face value.
JFK is on the US half-dollar COIN. The US hasn't printed half-dollar bills since the 19th century. JFK was assassinated in November 1963. In 1964 his portrait was placed on the half dollar in his honor.
Look at the coin again and post new question. No US 1 dollar coins are dated 1918.
The US has never made a gold half dollar.
About one dollar.
There are .1479 troy ounces of silver in a 1967 US Kennedy half dollar.