How Many Quarters Weigh A Gram?

How Many Quarters Weigh A Gram? Coins as Calibration Weights Coins are minted to precise specifications, including weight, so they can serve as calibration weights. For example, a U.S. nickel weighs 5 grams. A penny weighs 2.5 grams. These numbers easily multiply, so 10 nickels can serve as a 50-gram calibration weight. What coin weighs