How many coins do you need to weigh 500g?

The number of coins needed to weigh 500 grams depends on the weight of each coin. For example, if using U.S. pennies, which weigh 2.5 grams each, you would need 200 coins (500g ÷ 2.5g/coin = 200 coins). If using a different coin, you would need to adjust the calculation based on that coin's weight.