Specifications for All U.S. Dimes

The tables below contain specification data for all United States Dimes from 1800-2021. Use this information how you wish.

Dime Type	Diameter	Weight	Composition	Edge
Draped Bust Dime (1796-1807)	19 mm	2.7 grams	89.24% silver, 10.76% copper	Reeded
Capped Bust Dime (1809-1837)	18.8 mm (1809-1828), 18.5 mm (1828-1837)	2.7 grams	89.24% silver, 10.76% copper	Reeded
Seated Liberty Dime (1837-1891)	17.9 mm	2.67 grams	90% silver, 10% copper	Reeded

Dime Type	Diameter	Weight	Composition	Edge
Barber Dime (1892-1916)	17.9 mm	2.5 grams	90% silver, 10% copper	Reeded
Mercury Dime (1916-1945)	17.9 mm	2.5 grams	90% silver, 10% copper	Reeded
Roosevelt Dime (1946-present, excluding special issues)	17.9 mm	2.5 grams (1946-1964, silver), 2.27 grams (1965-present, clad)	90% silver, 10% copper (1946-1964), 91.67% copper, 8.33% nickel (1965-present)	Reeded