The weight of a U.S. dollar coin is 8.1 grams.

The Math / Science

A U.S. dollar coin (100 cents) is made of Manganese-Brass,  with 88.5% Cu, 6% Zn, 3.5% Mn and 2% Ni.  The dimensions of the U.S. dollar coin are as follows:

• Diameter = 1.043 inches (26.49)mm
• Thickness = 2.0 mm

Coin Calculators

• Weight of My Change
• Value of Coins in a Jar
• Coin Constants
  • Weight of a Penny
  • Weight of a Nickel
  • Weight of a Dime
  • Weight of a Quarter
  • Weight of a Half Dollar
  • Weight of a Dollar Coin
• Junk Silver Coin Value