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  2. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    300 mm ≡ 0.3 m foot ... sq yd ≡ 1 yd × 1 yd ≡ 0. ... ≡ Time of 9 192 631 770 periods of the radiation corresponding to the transition between the two ...

  3. Template:Convert/list of units/area - Wikipedia

    en.wikipedia.org/wiki/Template:Convert/list_of...

    equivalent to one square hectometre 1.0 ha (2.5 acres) Imperial & US customary: square mile: sqmi Q232291: sq mi 1.0 sq mi (2.6 km 2) sqmi km2; acre: acre Q81292 (none) 1.0 acre (0.40 ha) square yard: sqyd Q1550511: sq yd 1.0 sq yd (0.84 m 2) square foot: sqft (ft2, sqfoot, foot2) Q857027: sq ft long code "sqfoot (foot2)" outputs square foot ...

  4. Square foot - Wikipedia

    en.wikipedia.org/wiki/Square_foot

    Comparison of 1 square foot with some Imperial and metric units of area. The square foot (pl. square feet; abbreviated sq ft, sf, or ft 2; also denoted by ' 2 and ⏍) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States, Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar, Singapore and Hong Kong.

  5. Square yard - Wikipedia

    en.wikipedia.org/wiki/Square_yard

    Comparison of 1 square yard with some Imperial and metric units of area. The square yard (Northern India: gaj, Pakistan: gaz) is an imperial unit and U.S. customary unit of area. It is in widespread use in most of the English-speaking world, particularly the United States, United Kingdom, Canada, Pakistan and India.

  6. Square mile - Wikipedia

    en.wikipedia.org/wiki/Square_mile

    Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 miles × 20 miles) has an area of 400 sq mi; a rectangle of measuring 10 miles × 40 miles also has an area of 400 sq mi, but is not 20 miles square.

  7. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    The svedberg (S or Sv) is a unit of time used in chemistry equal to one hundred femtoseconds (100 fs). The shake is a unit of time used in nuclear physics equal to ten nanoseconds (10 ns). The sigma is a unit of time equal to one microsecond (1 μs). The jiffy is sometimes used to mean a unit of time of 10 ms. [dubious – discuss]

  8. Katha (unit) - Wikipedia

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

    One Katha is equal to 1,361.25 ft 2 or 151.25 square yard or 126.46 square metre. One Bigha in UP can range from 5 to 20 Katha. In Western UP, 1 Bigha can be 5.0 Katha (756.25 square yard) or 6.6667 Katha (1,008.33 square yard). In Eastern UP, 1 Bigha is 20 Katha (3,025 square yard). 1 Katha or 1 Biswa = 20 Dhur or 20 Biswansi; 1 Dhur = 1 Biswansi

  9. Foot (unit) - Wikipedia

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

    The Greek foot (πούς, pous) had a length of ⁠ 1 / 600 ⁠ of a stadion, [12] one stadion being about 181.2 m (594 ft); [13] therefore a foot was, at the time, about 302 mm (11.9 in). Its exact size varied from city to city and could range between 270 mm (10.6 in) and 350 mm (13.8 in), but lengths used for temple construction appear to ...