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An input unit can be converted to any number of output units—the outputs are specified as a "combination" by separating unit codes with a space (" ") or a plus (" + "). Using a space as a separator does not work if any of the unit codes contains a space. For example, each of the following converts 1.2 km 2 to acres, square yards, and hectares.
A pace is a unit of length consisting either of one normal walking step (approximately 0.75 metres or 30 inches), or of a double step, returning to the same foot (approximately 1.5 metres or 60 inches). The normal pace length decreases with age and some health conditions. [1] The word "pace" is also used for units inverse to speed, used mainly ...
According to a study in France, executives and professionals are 2.6 centimetres (1.0 in) taller, and university students are 2.55 centimetres (1.0 in) taller than the national average. [ 7 ] As this case shows, data taken from a particular social group may not represent a total population in some countries.
The typical height of an adult human is between 1.4 and 1.9 m (4 ft 7 in and 6 ft 3 in), although this varies significantly depending on sex, ethnic origin, and family bloodlines. [239] [240] Body size is partly determined by genes and is also significantly influenced by environmental factors such as diet, exercise, and sleep patterns. [241]
1 cm — 10 millimetres; 1 cm — 0.39 inches; 1 cm — edge of square of area 1 cm 2; 1 cm — edge of cube of volume 1 ml; 1 cm — approximate width of average fingernail; 1.5 cm — length of a very large mosquito; 2 cm — approximate width of an adult human finger; 2.54 cm — 1 inch; 3.1 cm — 1 attoparsec (10 −18 parsecs)
This translates to a hoppus foot being equal to 1.273 cubic feet (2,200 in 3; 0.0360 m 3). The hoppus board foot, when milled, yields about one board foot. The volume yielded by the quarter-girth formula is 78.54% of cubic measure (i.e. 1 ft 3 = 0.7854 h ft; 1 h ft = 1.273 ft 3). [43]
A US study published in 2015 of the stated preferences of a panel of 75 women using 3D-printed models as scale references showed a preferred penis length of 16 cm (6.3 in) and a preferred circumference of 12.2 cm (4.8 in) for long-term sexual partners, with slightly larger preferred sizes of a length of 16.3 cm (6.4 in) and circumference of 12. ...
Transport infrastructure standards were metricated using soft conversions, as part of the general metrication of the engineering industry. The standard railway track gauge, fixed at 4 feet 8 + 1 ⁄ 2 inches (1,435.1 mm) in 1845, [92] was redefined as 1,435 mm [93] – a nominal decrease of 0.1 mm but within the engineering tolerances.