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The Global Insight

What is the average size of a coin?

Author

Robert Miller

Updated on April 08, 2026

Coin Specifications

DenominationCentDollar
Diameter0.750 in. 19.05 mm1.043 in. 26.49 mm
Thickness1.52 mm2.00 mm
EdgePlainEdge-Lettering
No. of ReedsN/AN/A

How much is a coin size?

U.S. Coin Sizes, Weights, & Composition

DenominationValueDiameter (Width)
Dime$0.100.705 in (17.91 mm)
Quarter$0.250.955 in (24.26 mm)
Half Dollar$0.501

Is coin a size?

United States Mint coin sizes

Copper AlloySilver
Small Cent 19.05 mm 4.67 g 1856-1864 2.5 g 1982–present
Nickel 21.21 mm 5 g 1866–presentTwenty Cent 22 mm 5 g 1875–1878
Quarter (Clad) 24.26 mm 5.67 g 1965–presentQuarter 24.3 mm 6.25 g 1796–1964
Dollar 26.5 mm 8.1 g 1979–Present

Is a coin an inch?

The coin is 0.75 inches (19.05 mm) in diameter and 0.0598 inches (1.52 mm) in thickness. Also Know, how thick is a nickel in fractions? The thickness of one nickel is 1/16 inch. The dime is the smallest in diameter and is the thinnest of all U.S. coins currently minted for circulation, being .

How much does a 40% silver quarter weigh?

6.25 grams
Silver Quarters Every silver quarter minted from 1873 to 1964 has the same weight of 6.25 grams. This includes all of the silver Washington quarters, Standing Liberty quarters, and Barber quarters.

What is the thickest coin in the US?

Sometimes referred to as the fifty-cent piece, the half dollar it is the thickest U.S. coin at 2.15 millimeters. It is also the largest United States circulating coin currently produced in both size and weight. Half dollar coins have been produced every year since the conception of the United States Mint in 1794.

What coin is 2 cm?

The width of a pencil is close to 1 cm….How many cm is a penny?

MMCMDecimal Inches
2 mm0.2 cm0.07874 Inches
3 mm0.3 cm0.11811 Inches
4 mm0.4 cm0.15748 Inches

What is the thickest coin?

What is the thickest US coin? The thickest US coin at 2.15 mm is the half dollar!

What is the smallest coin?

Big news in the commemorative coin world: Switzerland just created the world’s smallest coin. Measuring 2.96 mm (0.1”) in diameter and featuring Swiss citizen Albert Einstein’s famous tongue-out pose, the quarter-franc is so tiny that some of its features can’t be seen with the naked eye.

Which is the smallest coin in the United States?

Small World Coins. In the United States, our smallest circulating coin is the dime (10 cents). Its diameter is 18mm (a little less than 3/4 of an inch), which is only 1mm smaller than the penny (1 cent).

Why are there different sizes of US coins?

According to the United States Mint, the purpose of having different sized coins is to make it easier to identify them. The size of a coin is not determined by its value, as demonstrated by the fact that a nickel is worth less than a dime but is larger in size. The United States Mint explains that the sizes of coins are meant to be convenient.

Which is smaller a dime or a penny?

The fun of collecting world coins, from Portland Coins. In the United States, our smallest circulating coin is the dime (10 cents). Its diameter is 18mm (a little less than 3/4 of an inch), which is only 1mm smaller than the penny (1 cent).

Which is the largest coin in the world?

It is a very useful coin, as many coin-operated machines, such as washers/dryers, candy machines, airport trolleys, and parking meters a ccept only quarters. Worth 50 cents. It is the largest of U.S. coins. It is a silver-over-copper coin. It has John F. Kennedy on the front and the Presidential Coat of Arms on the back. It is worth $1.