Resources Calculators Back Coil & Sheet Calculators *Please note that this calculation uses 0.2840 lbs/in³ for the density of steel. Coil Weight OD (inches) ID (inches) Width (inches) Weight = lbs Reset Coil Weight Per Circle Diameter (inches) Gauge (inches) Weight = lbs Reset Maximum Coil OD ID (inches) Width (inches) Weight (lbs) OD = in PIW = lbs/in of width Reset Flat Sheet Weight Thickness (inches) Width (inches) Length (inches) Weight = lbs Reset Coil Lineal Feet Thickness (inches) Width (inches) Weight (lbs) Feet = ft Reset Coil Feet to Weight Thickness (inches) Width (inches) Length (feet) Weight = lbs Reset