US coins: Cent - 19.05 mm Nickel - 21.2 mm Dime - 17.9 mm Quarter - 24.3 mm Half - 30.1 mm Dollar (modern) - 26.5 mm
The actual thickness of a dime is between 1.35 and 1.40 mm.
A US dime has a diameter of 17.91 MM, a thickness of 1.35 MM, and a mass of 2.268 grams.
The US nickel has been 21.2 mm in diameter ever since 1883.
Diameter: 21.21 mm (0.825 in)Thickness: 1.95 mm (0.077 in)
The height of a nickel (5 cents) is 1.95 mm The height of a dime (10 cents) is 1.35 mm
US coins: Cent - 19.05 mm Nickel - 21.2 mm Dime - 17.9 mm Quarter - 24.3 mm Half - 30.1 mm Dollar (modern) - 26.5 mm
The actual thickness of a dime is between 1.35 and 1.40 mm.
A US dime has a diameter of 17.91 MM, a thickness of 1.35 MM, and a mass of 2.268 grams.
the size of a dime
The US nickel has been 21.2 mm in diameter ever since 1883.
Diameter: 21.21 mm (0.825 in)Thickness: 1.95 mm (0.077 in)
Half-dimes were tiny (14 mm) coins issued up till 1873. The reason your coin is the size of a nickel (21 mm) is that it IS a nickel. However, without a date it's not possible to give a specific value. Please enter a new question in the form What is the value of a [date] US nickel? for a specific answer. (date = your coin's date)
dime -- 17.9 mm diameter, 1.35 mm thickness
Not sure about thinking dimes, but a dime has a thickness of 1.35 mm.
7 mm is about a quarter inch and 3 mm about an eighth of an inch.
2.268 g (0.0729 troy oz) Diameter 17.91 mm (0.705 in) Thickness 1.35 mm (0.053 in) Edge 118 reeds