Modern copper-plated zinc cents weigh 2.5 gm or about 0.09 oz.
Older bronze cents (mid-1982 and earlier) weigh 3.11 gm or approx 0.11oz
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One US cent weighs 2.5 grams or 0.0882 ounces.
Current US quarters weigh 5.67 gm, which is 0.2 US ounces. That means five quarters weigh one US ounce; a pound is 16 ounces so it's the same weight as 16 X 5 = 80 quarters.
The current penny weighs 2.5 grams. 1100 x 2.5 = 2750 grams which is about 6.06 pounds (US).
They will weigh approx 22.25 Newtons.
The link below shows the weights, metals, and sizes of all current coins.That depends on the coin. It also depends on what year they made. Dimes made of silver have a different weight than the current dimes. Please ask again and be more specific.