note:
Rod: Rod, one of the British units of length, is about 5.03 meters.
Link: Ling, one of the English units of length. It is approximately equal to 20. 12 cm.
Foot: foot, one of the British units of length, equal to one-third of a yard.
Yards: yards, one of the British units of length, equal to 3 feet.
Inc: inch, British basic length unit,112 feet, about 25.4 mm.