Rods Units Conversion Calculator

Distance Length Unit Conversion Calculators

Rods Units Length Conversion Calculator.

The rod or perch or pole is a surveyors tool and unit of length equal to 51⁄2 yards, 161⁄2 feet or 1⁄320 of a statute mile and one-fourth of a surveyor's chain. The rod is useful as a unit of length because whole number multiples of it can equal one acre of square measure. The 'perfect acre' is a rectangular area of 43,560 square feet, bounded by sides 660 feet by 66 feet long (660 ft long × 66 ft wide), or 220 yards by 22 yards long (220 yd/ long × 22 yd wide), or 40 rods by 4 rods long. Thus, an acre is 160 square rods.

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