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The foot (standard symbol: ft) [ 1 ][ 2 ] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [ 3 ] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet. Since an international agreement in ...
Length. For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use. From 1893, the foot was legally defined as exactly 1200⁄3937 m (approximately 0.304 8006 m). [13] Since July 1, 1959, the units of length have been defined on the basis of 1 yd = 0 ...
The basic unit of length in the imperial and U.S. customary systems is the yard, defined as exactly 0.9144 m by international treaty in 1959. [2] [5] Common imperial units and U.S. customary units of length include: [6] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)
1 ⁄ 144: 17.5 m 2 188 sq ft sextula 400 1 ⁄ 72: 35.0 m 2 377 sq ft sicilicus 600 1 ⁄ 48: 52.6 m 2 566 sq ft semiuncia 1,200 1 ⁄ 24: 105 m 2 1,130 sq ft uncia 2,400 1 ⁄ 12: 210 m 2 2,260 sq ft sextans 4,800 1 ⁄ 6: 421 m 2 4,530 sq ft quadrans 7,200 1 ⁄ 4: 631 m 2 6,790 sq ft triens 9,600 1 ⁄ 3: 841 m 2 9,050 sq ft
1.8288 metres exactly (Official international definition of the fathom) [10] 1.828804 m (Obsolete measurement of the fathom based on the US survey foot, only for use of historical and legacy applications) [11] 2 yards (1 yard is exactly 1 ⁄ 2 fathom) 6 feet (1 foot is exactly 1 ⁄ 6 fathom) 18 hands; 72 inches; 1 metre is about 0.5468 fathoms
1.143 m: From fingertip of outstretched arm to opposite shoulder, 20 nails = 1 + 1 ⁄ 4 yard or 45 inches. Mostly for measuring cloth. Fathom: 1.829 m: 6 feet, distance between arms outstretched, from fingertip to fingertip, on a 6-foot-tall person. Rod: 5 m: Also called a perch or pole: a measure used for surveying land and in architecture.
Metric (SI) units. 25.4 mm. A fire hydrant marked as 3-inch. The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to 1 36 yard or 1 12 of a foot. Derived from the Roman uncia ("twelfth"), the word inch is also sometimes used to translate ...
The renovators at the Massachusetts Highway Department also scored the concrete surface of the sidewalk on the bridge at 5-foot-7-inch (1.70 m) intervals instead of the conventional 6 feet (1.83 m). [23] The Lambda Zeta (MIT) chapter of Lambda Chi Alpha, which created the smoot markings, continues to repaint the markings once or twice per year ...