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Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property.
1.75 m – (5 feet 8 inches) – height of average U.S. male human as of 2002 (source: U.S. CDC as per female above) 2.4 m – wingspan of a mute swan; 2.5 m – height of a sunflower; 2.7 m – length of a leatherback sea turtle, the largest living turtle; 2.72 m – (8 feet 11 inches) – tallest-known human (Robert Wadlow) [31]
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)
When using "hand in" to convert to hands and inches, the rounded hands and inches values are equivalent, and use the same fraction, if any. Special rounding of the inches value only occurs when "hand in" is the output.
1.0 fathom (6.0 ft; 1.8 m) yard: yd yd assumes the international definition 1.0 yd (0.91 m) foot: ft (foot) ft long code "foot" outputs foot (and never feet) Use of ′ and ″ symbols violates MOSNUM so is not provided. 1.0 ft (0.30 m) ftin (feet and inches) ft m (foot m) inch: in in Use of ′ and ″ symbols violates MOSNUM so is not provided.
In its most restrictive interpretation, this is what may be meant when the term metric unit is used. The unit one (1) is the unit of a quantity of dimension one. It is the neutral element of any system of units. [2] In addition to the unit one, the SI defines 7 base units and associated symbols: The second (s) is the unit of time.
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In the late 13th century, the modern foot of 304.8 mm was introduced, equal to exactly 10 ⁄ 11 Anglo-Saxon foot. Cubit: 457.2 mm: From fingertips to elbow, 18 inches. Yard: 0.914 m: 3 feet = 36 inches, the practical base unit, defined as the length of the prototype bar held by the Crown or Exchequer. Ell: 1.143 m