How much does 700000 pennies weigh?

Answer 1

This would depend heavily on your definition of "penny." Since this is in the US Coins section I will assume you mean American, however there are still variances:

For modern Lincoln cents, from 1982-date each coin weighs 2.5 grams. Therefore 700,000 would weigh 1,750,000 grams, or 3858.09 pounds.

For Indian head cents from 1864-1909, and Lincoln cents from 1909-1982 (excluding 1943 steel cents) each coin weighs 3.11 grams. 700,000 would weigh 2,177,000 grams , or 4799.46 pounds.

For steel Lincoln cents, dated 1943, each coin weighs 2.70 grams, so 700,000 weighs 1,890,000 grams, or 4166.74 pounds

For Flying Eagle Cents (1856-1858) and Indian heads (1859-1864) each coin weighs 4.67 grams, so 700,000 weighs 3,269,000 grams, or 7206.91 pounds.

For Large Cents from 1796-1857 each coin weighs 10.89 grams, so 700,000 weighs 7,623,000 grams, or 16,805.84 pounds.

For Flowing Hair and Liberty Cap Large Cents (1793-1796) each coin weighs 13.48 grams, so 700,000 weighs 9,436,000 grams, or 20,802.82 pounds.

So there you go.