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If it's dated 1864 to 1909 or from 1959 to mid 1982, then it'd be 31100 grams.

But beyond that, it depends on the date.

Pennies in the United States began minting in 1787, and then were made of solid copper. The Indian Head penny, the coin to follow, was minted from 1859 to 1864 and varied in content of copper from one hundred percent to eighty-eight percent (the additional metal in the coin was zinc). Based on that variance, pennies from the 1800s can be distinguished by weight. Ninety five percent copper pennies weighed 3.1 grams, but the eighty-eight percent copper pennies weighed 4.67 grams. There is some debate as to the make up of the Indian Heads, and whether or not the print on the coin changed before the metals changed, but the history there gets blurry. Later, during the Second World War, pennies were all made of steel and coated in zinc because the copper was being dedicated to war use. These pennies only weighed 2.7 grams.

Modern pennies though, which were introduced with the Lincoln Memorial on the back in 1959, weigh 2.5 grams.

Although, pennies produced before 1982 actually weigh 3.1 grams. That being said, one hundred dollars in post 1982 pennies weighs 25,000 grams, or 25 kilograms. I got that by multiplying 100 pennies per dollar by 100 dollars, getting 10,00 and multiplying that by 2.5. 1000 grams is a kilogram, giving me 25 kilograms.

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โˆ™ 14y ago
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Q: How much does 100 dollars in pennies weigh?
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