What will be the weight of a 12mm blue metal in m3?

The weight of 12mm blue metal (crushed stone) can vary slightly based on its composition, but it typically has a density of about 1,600 to 1,800 kg per cubic meter. Therefore, 1 cubic meter (m³) of 12mm blue metal would weigh approximately 1,600 to 1,800 kilograms. For precise calculations, it's best to refer to the specific density provided by the supplier.