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  2. Olympic-size swimming pool - Wikipedia

    en.wikipedia.org/wiki/Olympic-size_swimming_pool

    About 2 acre-feet. There must be two spaces 2.5 m (8 ft 2 in) wide outside lanes 1 and 8 (in effect, two empty lanes). [ 3 ] The length of 50 metres (164 ft) must be between the touch pads at the end of each lane, if they are used. [ 3 ]

  3. Pace (unit) - Wikipedia

    en.wikipedia.org/wiki/Pace_(unit)

    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 ...

  4. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    The centimetre (SI symbol: cm) is a unit of length in the metric system equal to 10−2 metres (⁠ 1 100 ⁠ m = 0.01 m). To help compare different orders of magnitude, this section lists lengths between 10 −2 m and 10 −1 m (1 cm and 1 dm). 1 cm – 10 millimetres. 1 cm – 0.39 inches. 1 cm – edge of a square of area 1 cm 2.

  5. Human height - Wikipedia

    en.wikipedia.org/wiki/Human_height

    Human height measurement using a stadiometer. Human height or stature is the distance from the bottom of the feet to the top of the head in a human body, standing erect.It is measured using a stadiometer, [1] in centimetres when using the metric system or SI system, [2] [3] or feet and inches when using United States customary units or the imperial system.

  6. Rod (unit) - Wikipedia

    en.wikipedia.org/wiki/Rod_(unit)

    5.0292 m. The rod, perch, or pole (sometimes also lug) is a surveyor's tool [1] and unit of length of various historical definitions. In British imperial and US customary units, it is defined as 161⁄2 feet, equal to exactly 1⁄320 of a mile, or 51⁄2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.

  7. Chain (unit) - Wikipedia

    en.wikipedia.org/wiki/Chain_(unit)

    The chain (abbreviated ch) is a unit of length equal to 66 feet (22 yards), used in both the US customary and Imperial unit systems. It is subdivided into 100 links. [1][2] There are 10 chains in a furlong, and 80 chains in one statute mile. [2] In metric terms, it is 20.1168 m long. [2] By extension, chainage (running distance) is the distance ...

  8. Mariana Trench - Wikipedia

    en.wikipedia.org/wiki/Mariana_Trench

    The Mariana Trench is an oceanic trench located in the western Pacific Ocean, about 200 kilometres (124 mi) east of the Mariana Islands; it is the deepest oceanic trench on Earth. It is crescent-shaped and measures about 2,550 km (1,580 mi) in length and 69 km (43 mi) in width. The maximum known depth is 10,984 ± 25 metres (36,037 ± 82 ft ...

  9. Average human height by country - Wikipedia

    en.wikipedia.org/wiki/Average_human_height_by...

    20–85 (N= m:322 f:107, SD= m:6.74 cm (2.7 in) f:6.29 cm (2.5 in)) 92.7%: Measured: 1998–2003 [199] Turkey: 177.1 cm (5 ft 9 + 1 ⁄ 2 in) 163 cm (5 ft 4 in) 1.09 18–30 (N= m:325 f:325, SD= m:6.33 cm (2.5 in) f:5.62 cm (2.2 in)) — Measured 2021 [200] Turkey: 171.4 cm (5 ft 7 + 1 ⁄ 2 in) 157.7 cm (5 ft 2 in) 1.09: 15+ (N= m:2,448 f ...