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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] [10] Common imperial units and U.S. customary units of length include: [11] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)
conversion factor/m combinations SI: ... cm cm US spelling: centimeter: 1.0 ... To convert from feet and inches use ...
≡ 1 ⁄ 100 ch [4] ≡ 0.66 ft (US) ≡ 7.92 in ≈ 0.201 1684 m: link (Ramsden's; Engineer's) lnk ≡ 1 ft [4] = 0.3048 m metre (SI base unit) (meter) m ≡ Distance light travels in 1 ⁄ 299 792 458 of a second in vacuum. [8] (SI base unit) mickey: ≡ 1 ⁄ 200 in = 1.27 × 10 −4 m: micrometre (old: micron) μ; μm ≡ 1 × 10 −6 m ...
{{convert|123|cuyd|m3+board feet}} → 123 cubic yards (94 m 3; 40,000 board feet) The following converts a pressure to four output units. The precision is 1 (1 decimal place), and units are abbreviated and linked.
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 = 0.9144 ...
The American football field, which has a playing area 100 yards (91.4 m) long by 160 feet (48.8 m) wide. This is often used by the American public media for the sizes of large buildings or parks. It is used both as a unit of length (100 yd or 91.4 m, the length of the playing field excluding goal areas) and as a unit of area (57,600 sq ft or ...
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Miners also use it as a unit of area equal to 6 feet square (3.34 m 2) in the plane of a vein. [2] In Britain, it can mean the quantity of wood in a pile of any length measuring 6 feet (1.8 m) square in cross section. [2] In Central Europe, the klafter was the corresponding unit of comparable length, as was the toise in France.