It depends what year the half dollar was made.
1964 - 12.5 g
1965-1970 - 11.5 g
1971 to now - 11.34 g
All Walking Liberty half dollars have the same weight of 12.50 grams.
Kennedy has never been on a dollar coin just half dollars, look at the coin again and post new question with a date.
The 1964 weight is 12.50 grams, 1965-1970 weigh 11.50 grams.
12.50
The '64 Kennedy half dollar contains 90% silver with 10% copper and weighs 12.5 grams. That's 11.25 grams of silver.
It has a total weigh of 24.6 grams.
Barber, Walking Liberty, Franklin, and 1964 Kennedy halves weigh 12.5 gm and were made of 90% silver, so they contain 11.25 gm of pure silver.
There are .1479 troy ounces of silver in a 1967 US Kennedy half dollar.
The actual amount of pure silver is .36169 of an ounce.
It's not silver. None of the 1974 Kennedy halves are silver. Just spend it.
Kennedy half dollar coins dated 1965 through 1970 weigh 11.5 grams and are 40% silver - they thus contain 0.1479 troy ounces of silver.
The coin is only 40% silver and has a value of $2.73 only the 1964 Kennedy half dollar was 90% silver.
The U.S. did not mint any dollar coins in 1960.
No Kennedy half-dollar from 1971 to date made for general circulation contains any silver.
It's worth about $4 for its silver content.
It's a Half Dollar NOT a dollar coin. The coin weighs 12.50 grams and contains .36169oz of pure silver.