The rod, perch, or pole is a surveyor's tool and a unit of length with various historical definitions. In British imperial and US customary units, it is defined as 16+1⁄2 feet, equal to exactly 1⁄320
Sign near a historic site in Indiana, with its location given as "80 rods east", equivalent to roughly 400 m or 1⁄4 mile.
The sign included in Pieter Aertsen's 1551 painting A Meat Stall with the Holy Family Giving Alms reads in Flemish: "behind here are 154 rods of land for sale immediately, either by the rod according to your convenience or all at once".
A standard at the City Hall in Münster, Germany, from 1816; the bar shown is one "Prussian Half Rod" (1.883 m) long.
Land for sale in Gortavaura, County Galway, Ireland: the area is 48 acres, 3 roods and 29 perches. In metric units, this is 19.8 hectares.
A furlong is a measure of distance in imperial units and United States customary units equal to one-eighth of a mile, equivalent to any of 660 feet, 220 yards, 40 rods or perches, 10 chains, or approx
Rod (unit)
…multiples of it can form one acre of square measure (area). The 'perfect acre' is a rectangular area of 43,560 square feet, bounded by sides 660 feet (a furlong) long and 66 feet (a chain) wide (220 yards by 22 yards) or, equivalently, 40 rods by 4 rods. An acre is therefore 160 square rods or 10 square chains…
Present-day use of furlongs on a highway sign near Yangon (Rangoon)
Mileposts on the Yangon–Mandalay Expressway use miles followed by furlongs
The five-furlong (1000 m) post on Epsom Downs Racecourse