Conversion Tables Please select the type of conversion you require from the available tables below: Length Area Volume Capacity Moment of Force (Torque) Pressure, Stress Velocity Acceleration Mass Mass per Unit Length Mass per Unit Area Mass /Unit Area /Unit Length Density Moment of Inertia Force Force (Weight)/Unit Length     Length 1 mile = 1.609km 1 yd = 0.914m 1 ft = 0.304m 1 in = 25.4mm Area 1 sq mile = 2.589km² 1 acre = 4046.86m² 1 sq yd = 0.836m² 1 sq ft = 0.092m² 1 sq in = 645.16mm² Volume 1 yd³ = 0.764m³ 1 ft³ = 28.316cm³ 1 in³ = 16.387cm³ Capacity 1 gal = 4.546 litres 1 USgal = 3.785 litres 1 qt = 1.137 litres 1 pt = 0.568 litres 1 gill = 0.142 litres Moment of Force (Torque) 1 tonf ft* = 3.037kNm 1 lbf ft** = 1.355Nm 1 pdl ft = 0.042Nm 1 lbf in = 0.112Nm *tonf = ton-force ** lbf = pound force