Question: how much is 40 lbs of pennies worth?
Answer: A normal new and unused penny weighs about 3.11 grams. Since there are approximately 453.6 grams in a pound, there are approximately 146 pennies (453.6/3.11) in a pound. Multiplying 146 by 45 gives 6570 pennies. This is equal to 65.70 dollars.