(Roll Weight × [Area of Basic Size]) × 500 ÷ (Basis Weight × Roll Width) × 12 = Linear Feet ÷ 3 = Linear Yards
The linear footage and yardage for a 25×38” roll of basis 50# offset paper that is 26′′ wide and weighs 100 lbs. is: [(100 × [25×38]) × 500] ÷ [(50×26) × 12] = 3,045 Linear Feet ÷ 3 = 1,015 Linear Yards