Pick a stock shape and material, enter the dimensions, and get the weight per piece, for your quantity, and per unit length. Steel, stainless, aluminium, brass, copper, titanium and more — or type your own density.
Weight = cross-section area × length × density. Densities are typical nominal values — actual alloy density varies by grade and temper, so for critical work use your supplier's certified figure (type it in the density box).