Question: how do you calculate the weight of steel?
Answer: Weight of STEEL BAR. Weight = Density x Volume {Volume = Area x Length } Density of Steel = 7850 Kg/m3. Area of Steel = pi x d^2 / 4. = 0.785 d^2. Taking, Bar Length =1000 mm = 1 m. Therefore, we can calculate. Weight of Steel Bar = {7850/(1000x1000x1000)} x (3.14 x d^2 /4)x1000.