How many ridges does a dime have?

Answer by  MarkWatrous (729)

The "ridges" that you are referring to are actually called "reeds". All dimes that are in circulation have 118 reeds. The number of reeds was established when the dime was commissioned by the Coinage Act of 1792. The first dime was minted in 1796 and continues to be produced today.

Answer by  Tranwreck (279)

The US dime has 118 ridges around it's circumference. These ridges, also known as a reeded edge, were originally used as a counterfeit prevention tool. They are also useful to the seeing impaired for identifying the coin.

Answer by  Billy25 (104)

The modern Roosevelt dime which has been minted since 1946 is the smallest and lightest US coin. Despite its small size, the Roosevelt dime has 118 ridges along its edge. Dimes are currently made of the metals copper and nickle. Prior to 1965, dimes were made of silver and a small amount of copper.

Answer by  gb82 (25)

A dime produced using the US Mint's current set of dies has one hundred eighteen (118) ridges around its circumference.

Answer by  ThePCguy (25)

A dime has 118 ridges. A short cut to verify this is by counting half way down the edge of a dime, and multiply that number by 2.

Answer by  SarahB (158)

The Roosevelt dime (10 cents) has 118 edge ridges (called reeding). Reeding was put onto coins to avoid coin clipping when they used to be made of precious metals.

Answer by  eyen (61)

The dime coin produced as currency by the United States Mint does not have a smooth edge, as its side contains 118 ridges.