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In addition to the yardland, Old and Middle English both used their forms of "yard" to denote the surveying lengths of 15 feet (4.6 m) or 16.5 feet (5.0 m), used in computing acres, a distance now usually known as the "rod". [5] A unit of three English feet is attested in a statute of c. 1300 , but there it is called an ell (ulna, lit.
Den is a direct measure of linear density. [5] dtex (deci-tex): Grams per 10,000 metres of yarn. Dtex is a direct measure of linear density. [5] gr/yard: Grains per yard of yarn. Gr/yard is a direct measure of linear density, but is rarely used in the modern textile industry. ECC or NeC or Ne (English Cotton Count): The number of 840 yd lengths ...
Linear measure Unit Abbreviation Definition SI equivalent inch: in or ″ [Note 8] 25.4 mm [n 1] foot: ft or ′ [Note 9] 12 inches 304.8 mm [n 1] yard: yd 3 feet 0.9144 m [n 1] chain UK: 22 yards 20.117 m furlong UK: fur 220 yards 201.17 m mile [n 2] 1760 yards 1609.3 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.
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 ...
In 1866, the U.S. Congress passed a law that allowed, but did not require, the use of the metric system in trade and commerce. Included in the law was a table of conversion factors between the customary (i.e. English-derived) and metric units, among them a definition of the meter in terms of the yard, and the kilogram in terms of the pound.
The factor–label method can convert only unit quantities for which the units are in a linear relationship intersecting at 0 (ratio scale in Stevens's typology). Most conversions fit this paradigm. An example for which it cannot be used is the conversion between the Celsius scale and the Kelvin scale (or the Fahrenheit scale). Between degrees ...
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]