|Value||0.25 U.S. Dollar|
|Mass||6.25(Ag); 5.67 (Cu-Ni) g|
|Diameter||24.26 mm (0.955 in)|
|Thickness||1.75 mm (0.069 in)|
|Composition||(1932-1964) 90% Ag 10% Cu; (1965-present) 91.67% Cu|
|Years of minting||1796, 1804–1807, 1815–1828, 1831–1930, 1932, 1934-present.|
|Designer||John Flanagan (1932 version) from a 1786 bust by Houdon / William Cousins (modification to Flanagan's design)|
|Design||various; at least five designs per year since 1999 (latest shown)|
The quarter, short for quarter dollar, is a United States coin worth 25 cents, one-quarter of a dollar. It has a diameter of .955 inch (24.26 mm) and a thickness of .069 inch (1.75 mm). The coin sports the profile of George Washington on its obverse, and its reverse design has changed frequently. It has been produced on and off since 1796 and consistently since 1831.
The choice of a quarter-dollar as a denomination—as opposed to the 1⁄5 more common elsewhere—originated with the practice of dividing Spanish milled dollars into eight wedge-shaped segments, which gave rise to the name "piece of eight" for that coin. "Two bits" (that is, two eighths of a piece of eight) is a common nickname for a quarter.