The weight of 1 cubic yard of gravel depends on the density of the gravel. The weight of 1 cubic yard of loose, dry gravel is about 2,565 pounds.
Volume is a measure of how much space an object or a quantity of a substance fills, while weight is a measure of the gravitational force the earth exerts upon an object. Volume is calculated by dividing the mass of an object by its density. The non-metric system of measurement customarily used in the United States lacks a unit for mass, which refers to the amount of matter an object contains and is not relative to gravity. Thus, calculating the weight in pounds of 1 cubic yard of a dry material, such as gravel, may first require conversion of cubic yards to grams, a metric measurement of mass, before arriving at an estimated weight equivalent in pounds.