A standard United States quarter coin has a diameter of 0.955 inches (24.26 mm). It weighs 5.67 grams (0.2 ounces) and has a thickness of 0.069 inches (1.75 mm).
The quarter’s composition has changed over time. Since 1965, it’s made of a copper core with layers of cupronickel (75% copper, 25% nickel) bonded to both sides, making the overall composition 91.67% copper and 8.33% nickel. Before 1965, quarters were composed of 90% silver and 10% copper.
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How large is a quarter in diameter?
It has a diameter of 0.955 inch (24.26 mm) and a thickness of 0.069 inch (1.75 mm).