Modern US cents ("pennies") weigh 2.5 gm.
100 pennies in a dollar - 100 x 100 =10,000 coins.
10,000 x 2.5 = 25,000 gm, or 25 kg.
A kilo is equal to 2.204 US pounds, so 25 kg = 25 x 2.204 = 55.1 US pounds
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Depends on their dates. Pennies before 1982 weigh 3.11 grams. Pennies from 1983 to now weigh 2.5 grams. Pennies dated 1982 could weigh either amount. An ounce equals 28.35 grams. Separate your coins into piles by date and get out your calculator.
7,142 pennies weighs about 39.4 (39.3635369)pounds.
Canadian pennies weigh 2.35 grams each. Since there are 100 pennies in one dollar, 25 dollars would consist of 2,500 pennies. Therefore, the total weight of 25 dollars in Canadian pennies is 2,500 pennies × 2.35 grams/penny = 5,875 grams, or approximately 5.88 kilograms.
A box of pennies that contains $25 worth of pennies would have 2,500 pennies, as each penny is worth $0.01. Since a penny weighs 2.5 grams, the total weight of the pennies would be approximately 6,250 grams, or about 13.8 pounds.
1 billion pennies would weigh 5,511,556.55 pounds. The weight of a penny is 2.5 grams