Weight of a Dollar Coin: 8.1g for Common Types and More

The weight of a dollar coin can vary depending on the specific type of dollar coin.

• Sacagawea and Presidential Dollars: These are the most common dollar coins currently in circulation.

– They weigh 8.1 grams or 0.286 ounces.
– They are made of a three-layer clad construction with a pure copper core and an outer layer of manganese brass. The overall composition is 88.5% copper, 6% zinc, 3.5% manganese, and 2% nickel.

• Eisenhower Dollars (1971–1978):

– Circulation strikes (copper/nickel-clad): Weigh ~22.68 grams (350 grains).
– Silver-clad: Weigh ~24.624 grams (380 grains) and contain 40% silver.

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• Susan B. Anthony Dollars (1979–1981, 1999):

– These coins weigh 8.1 grams or 0.260 troy ounces.
– They are made of a copper-nickel clad composition with a pure copper core.

• Morgan and Peace Dollars (90% silver): Weigh 26.73 grams.
• American Silver Eagle Dollar (99.9% pure silver): Weighs 31.103 grams.

In summary, the weight of a circulating dollar coin is generally 8.1 grams , but older or commemorative dollar coins may have different weights and compositions.