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Silver and gold content of U.S. coins

The mint constants behind every melt value: weight, fineness, pure content.

The minted specifications behind every melt value on this site: weight, fineness and pure metal content for each U.S. coin. These are U.S. Mint constants - they never change, only the spot price does.

Silver coins

Coin YearsWeightFineness Silver (ASW)
Morgan Silver Dollar1878-1904, 192126.730 g90.0%0.77345 ozt
Peace Silver Dollar1921-193526.730 g90.0%0.77345 ozt
Trade Dollar1873-188527.216 g90.0%0.78751 ozt
Walking Liberty Half Dollar1916-194712.500 g90.0%0.36170 ozt
Franklin Half Dollar1948-196312.500 g90.0%0.36170 ozt
1964 Kennedy Half Dollar196412.500 g90.0%0.36170 ozt
40% Silver Kennedy Half Dollar1965-197011.500 g40.0%0.14789 ozt
Washington Silver Quarter1932-19646.250 g90.0%0.18085 ozt
Standing Liberty Quarter1916-19306.250 g90.0%0.18085 ozt
Barber Quarter1892-19166.250 g90.0%0.18085 ozt
Roosevelt Silver Dime1946-19642.500 g90.0%0.07234 ozt
Mercury Dime1916-19452.500 g90.0%0.07234 ozt
Barber Dime1892-19162.500 g90.0%0.07234 ozt
War Nickel (35% Silver)1942-19455.000 g35.0%0.05626 ozt
American Silver Eagle1986-present31.101 g99.9%0.99892 ozt

Gold coins

Coin YearsWeightFineness Gold (AGW)
$20 Double Eagle1849-193333.436 g90.00%0.96749 ozt
$10 Gold Eagle1795-193316.718 g90.00%0.48375 ozt
$5 Half Eagle1795-19298.359 g90.00%0.24187 ozt
$2.50 Quarter Eagle1796-19294.180 g90.00%0.12095 ozt
$3 Gold Piece1854-18895.015 g90.00%0.14511 ozt
Gold Dollar1849-18891.672 g90.00%0.04838 ozt
American Gold Eagle (1 oz)1986-present33.931 g91.67%1.00003 ozt
American Gold Buffalo (1 oz)2006-present31.108 g99.99%1.00005 ozt

Base-metal coins

CoinYears WeightComposition
Lincoln cent (copper) 1909-19823.110 g95% copper, 5% tin/zinc
Lincoln cent (zinc)1982-present 2.500 g97.5% zinc, 2.5% copper plating
Jefferson nickel 1946-present5.000 g75% copper, 25% nickel

ASW and AGW ("actual silver/gold weight") are computed as weight × fineness ÷ 31.1035 and cross-checked against published Mint specifications on every build.

Turn any row into a dollar figure on its coin page, or with the junk silver calculator.