First you have to determine whether the coin is silver or copper-nickel. All circulating half dollars dated 1971 and later are made of copper-nickel, just like dimes and quarters. If your coin has a P or D above the date, it's a circulation strike so it's only worth 50 cents.
Special silver halves have been made for sale to collectors, but those carry an "S" above the date and are in special holders with the words Prestige Proof on them. If that's what you have, please see the Related Question for more information.
50¢. It's an ordinary circulation coin.
The last Morgan was struck in 1921. A dollar coin dated 1992 is an "American Silver Eagle" bullion coin, it's value is tied to the spot price of silver at the time of sale.
Current value is about $30.00
Morgan dollars were minted for circulation during the years 1878-1904 and 1921. If you have a "dollar" dated 1992 it's a bullion piece sold for its silver content and not for spending. Its value will be a small amount above the current price for 1 ounce of silver, which changes daily and can be found in a newspaper or at a site such as www.kitco.com
All circulation halves 1971 and later are cupronickel rather than silver and are worth face value if you found it in circulation. Urban legends notwithstanding, NO silver Kennedy halves were made for circulation after 1970. Since 1992 some halves have again been made in 90% silver for inclusion in specially-minted proof sets. All these coins have "S" mint marks and were only sold to collectors, not released for use in circulation.
A 1992 American Eagle Bullion Silver Dollar in MS65 condition is worth: $24.00.
Value is about $18.00
A 1992 American Eagle Bullion Silver Dollar in MS65 condition is worth: $24.00.
50¢. It's an ordinary circulation coin.
As of today about $17.00
The last Morgan was struck in 1921. A dollar coin dated 1992 is an "American Silver Eagle" bullion coin, it's value is tied to the spot price of silver at the time of sale.
All circulation half-dollar dated 1971 and later were struck in copper-nickel. The last half dollars containing silver were minted in 1970 and silver proof sets weren't minted again until 1992. Please see the Related Question for more.
The 1964 Kennedy half dollar, which is 90% silver, contains 0.3617 troy ounces of silver. The 1965-1970 Kennedy half dollars (as well as some 1976 coins issued for collectors), which are only 40% silver, contain 0.1479 troy ounces of silver. The silver proof Kennedy half dollars produced for collectors since 1992 are, like the 1964 coins, 90% silver and contain 0.3617 troy ounces of silver.
uncirculated = $17proof = $50
a dollar
Current value is about $30.00
There were no dollar coins minted in 1992.