What Measurements Does a U.S. Dime Have?

A dime has a diameter of 17.91 mm (0.705 inches), is 1.35 mm thick, and weighs 2.268 grammes, according to the United States Mint (0.08 ounces). Of all U.S. coins, this one is the thinnest and has the smallest diameter.

In addition to copper, cupronickel is an alloy of nickel and other elements that is used to make coins. Coins have a nickel content of 8.33 percent, with the remaining cupro, or copper, and typically a minuscule amount of manganese. Dime silver colour comes from cupronickel.

118 reeds are used to reed the edge of the dime. These are the rows of grooved lines that have been added to the edges of dime coins to deter coin forgery. When dimes were first created, they were made of gold and silver, and individuals tried to reclaim the precious metals by filing the edges.

Misha Khatri
Misha Khatri is an emeritus professor in the University of Notre Dame's Department of Chemistry and Biochemistry. He graduated from Northern Illinois University with a BSc in Chemistry and Mathematics and a PhD in Physical Analytical Chemistry from the University of Utah.


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