A U.S. nickel weighs 5 grams or approximately 0.176 ounce. Nickels in circulation are produced by the U.S. Mint according to the same specifications of design, weight, diameter and thickness. These specifications have remained relatively unchanged since the inception of the Jefferson nickel.
Of the coins in circulation in the United States, the nickel weighs more than the penny and the dime, but less than the quarter dollar, the half dollar and the dollar coins. Nickels tend to be thicker than pennies, dimes and quarters but less thick than half dollars and dollar coins. The nickel is similar to the penny when compared to the rest of the coins in circulation, as both nickels and pennies have plain edges, while the rest of the coins feature either reeds or lettering on their edges.
The nickel has had many variations since it was first created, and some designs are highly sought after by coin collectors. One of the rarest nickel variations is the Liberty Head nickel dated to 1913. While nickels have been mainly composed of copper and nickel, some past variations of the nickel included silver in its composition. These nickels are sought after by people collecting coins and people looking to collect or invest in silver.