This is a metric for the metal weight in grams (g) of common US coins, with common gold and silver from around the world included at the end.

1. Current Coinage

2. Silver 1873-1964

3. Gold Pre-1933

4. Common Precious Metal Coins

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1. Current coinage:

Penny (1864-1982)= 3.11g (2.95g copper; .16g tin).

Penny (1982-present)= 2.5g (2.43g zinc; .062g copper).

Union Shield Penny= 3.11g (3.03g zinc; .077g copper)

Nickel= 5g (3.75g copper; 1.25g nickel).

Dime= 2.268g (2.08g copper; .188g nickel).

Quarter= 5.67g (5.197g copper; .472g nickel).

Kennedy Half Dollar (1965-1970)= 11.5g (6.9g copper; 4.6g silver).

Kennedy Half Dollar (1971-present)= 11.34g (10.395g copper; .945g nickel).

Sacagawea Dollar= 8.1g (7.16g copper; .486g zinc; .283g manganese; .162g nickel).

$1 Silver Eagle= 31.103g (31.071897g silver; .031103g copper).

$50 Gold Eagle= 33.93g (31.1g gold; 1.798g copper; 1.018g silver).

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2. Silver 1873-1964:

Dime= 2.5g (2.25g silver; .25g copper).

Quarter= 6.25g (5.62g silver; .625g copper).

*Half Dollar= 12.5g (11.25g silver; .125g copper).

Dollar= 26.73g (24.05g silver; 2.673g copper).

*The 1964 Kennedy Half Dollar has the same specifications.

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3. Gold Pre-1933:

$20= 33.436g (30.09g gold; 3.343g copper).

$10= 16.178g (15.046g gold; 1.6178g copper).

$5= 8.089g (7.28g gold; .8089g copper).

$2.50= 4.0445g (3.64g gold: .4044g copper).

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4. Common Precious Metal Coins:

Austrian Philharmonic (€100)= 31.1g (31.096g gold).

South African Krugerrand= 33.93g (31.1g gold; 2.827g copper).

Swiss and French 20 Franc= 6.45g (5.805g gold; .645g copper).

British Sovereign= 7.988g (7.322g gold; .658g copper).

Mexican 50 Peso= 41.663g (37.497g gold; 4.166g copper)

Chinese 500 Gold Panda= 31.1g (31.0968g gold).

Australian Kangaroo= 31.1g (31.0968g gold).

Canadian Gold Maple Leaf= 31.1g (31.096g gold).

Canadian Silver Maple Leaf= 31.1g (31.096g silver).

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5. Bonus:

1772 Spanish Milled Dollar 27.07g (24.44 g silver).

[1] https://www.usmint.gov/learn/coin-and-medal-programs/coin-specifications

[2] http://cointrackers.com/blog/43/how-much-does-a-penny-weigh/

[3]https://www.coinsite.com/composition-of-pre-1965-modern-us-coinage/amp/

[4] https://www.ngccoin.com/price-guide/coin-melt-values.aspx

[5] https://fraser.stlouisfed.org/title/coinage-act-1849-1094

[6] https://www.coinnews.net/coins/the-american-eagle-silver-coin-history-design-prices-and-mint-figures/#7

[7] https://www.moneymetals.com/american-gold-eagle-coin-one-ounce/7

[8] https://www.bellevuerarecoins.com/products/pre-1933-u-s-gold-coins/10-indian-head-gold-eagle/

[9] https://sacagaweadollarguide.com/sacagawea-dollar-specifications/

[10] https://kennedyhalfdollars.net/composition-and-specifications/

[11] https://www.providentmetals.com/knowledge-center/austrian-philharmonic-gold-coins.html

[12] https://www.providentmetals.com/1-oz-canadian-gold-maple-leaf-dates-our-choice.html

[13] https://www.sagold.com/krugerrand-info/

[14] https://www.golddealer.com/product/swiss-20-franc/

[15] https://www.celticgold.eu/en/20-francs-marianne-rooster-gold-coin-france.html

[16]https://www.bullionbypost.co.uk/index/sovereign-guide/what-is-the-weight-of-a-gold-sovereign/

[17] https://www.itmtrading.com/mexican-gold-50-peso

[18] https://libertycoinservice.com/china-gold-panda-information/

[19] https://www.mint.ca/store/content/bullionProductDetails.jsp?itemId=prod1630032&cat=Products&nId=7400002&parentnId=1300002&nodeGroup=About+the+Mint

[20] https://www.providentmetals.com/knowledge-center/australian-gold-kangaroo-coins.html

[21] https://www.jstor.org/stable/pdf/1834139.pdf Page 616