From 1965 to 1970 and some special 1976 issued half dollars were composed of 40% silver, so there bullion value will exceed their face value for a circulated coin. Otherwise they are worth 50 cents generally in circulated condition. There are some exceptions but the scope of the question is too broad to answer fully.
A 1964 Canadian half-dollar has a value of approximately $12 Canadian dollars. This value is dependent on the current silver market.
It has a metal value of about $10.
The value of a US 1964 half dollar in circulated condition is around $10. in uncirculated condition they are worth around $16.
40.00
Check that coin again. Kennedy wasn't put on the half dollar until 1964.
As of today the value is about $6.00 just for the silver
All US half dollars from 1964 to date have Kennedy on them, your 1995 half dollar is face value.
About $6 for its silver content
A genuine 1964 Kennedy half dollar is currently worth about $6. A jumbo coin is surely a novelty, and isn't worth anything to collectors.
No 1963 Kennedy half dollars exist. 1963 is the last year of the Franklin half dollar. 1964 is the first year for Kennedy.
At present, it's worth around $10.50.
All U.S. halves from 1964 to date are KENNEDY half dollars.