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  2. Human height - Wikipedia

    en.wikipedia.org/wiki/Human_height

    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. [4][5]

  3. Hand (unit) - Wikipedia

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

    1 / 3 ⁠ ft. The hand is a non- SI unit of measurement of length standardized to 4 in (101.6 mm). It is used to measure the height of horses in many English-speaking countries, including Australia, [1] Canada, Ireland, the United Kingdom, and the United States. [2] It was originally based on the breadth of a human hand.

  4. Metric system - Wikipedia

    en.wikipedia.org/wiki/Metric_system

    A derived unit is used for expressing any other quantity, and is a product of powers of base units. For example, in the modern metric system, length has the unit metre and time has the unit second, and speed has the derived unit metre per second. [5]: 15 Density, or mass per unit volume, has the unit kilogram per cubic metre. [5]: 434

  5. International System of Units - Wikipedia

    en.wikipedia.org/wiki/International_System_of_Units

    Here the metric prefix 'kilo-' (symbol 'k') stands for a factor of 1000; thus, 1 km = 1000 m. The SI provides twenty-four metric prefixes that signify decimal powers ranging from 10 −30 to 10 30, the most recent being adopted in 2022.

  6. Heights of presidents and presidential candidates of the ...

    en.wikipedia.org/wiki/Heights_of_presidents_and...

    The second-tallest unsuccessful candidate is John Kerry at 6 ft 4 in (193 cm). The shortest unsuccessful presidential candidate is Stephen A. Douglas at 5 ft 4 in (163 cm). The next shortest is Kamala Harris, who lost the 2024 election and is 5 ft 41⁄2 in (164 cm). The largest height difference between two presidential candidates (out of the ...

  7. Average human height by country - Wikipedia

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

    The number of cases was 57,574, with an average age of 48 years and a median age of 47 years. They were all over 18 years old at the time of the investigation. Regardless of age, urbanity or rurality, ethnic groups, or provinces, the average height of males was 169.60 cm, while the average height of females was 158.88 cm.

  8. System of units of measurement - Wikipedia

    en.wikipedia.org/wiki/System_of_units_of_measurement

    Mesures usuelles (French for customary measures) were a system of measurement introduced as a compromise between the metric system and traditional measurements. It was used in France from 1812 to 1839. A number of variations on the metric system have been in use.

  9. Foot (unit) - Wikipedia

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

    0.3048 m. 30.48 cm. 304.8 mm. The foot (standard symbol: ft) [1][2] is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, ′, is commonly used to represent the foot. [3] In both customary and imperial units, one foot comprises 12 inches, and one yard comprises three feet.