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  2. 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 and partially in Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar ...

  3. Rood (unit) - Wikipedia

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

    Rood is an English unit of area equal to one quarter of an acre [2] or 10,890 square feet, exactly 1,011.7141056 m 2. A rectangle that is one furlong (i.e., 10 chains, or 40 rods) in length and one rod in width is one rood in area, as is any space comprising 40 perches (a perch being one square rod). The vergée was also a quarter of a Normandy ...

  4. British thermal unit - Wikipedia

    en.wikipedia.org/wiki/British_thermal_unit

    For one square foot of the insulation, one Btu per hour of heat flows across the insulator for each degree of temperature difference across it. 1 therm is defined in the United States and European Union as 100,000 Btu—but the U.S. uses the Btu 59 °F while the EU uses the BTU IT. United Kingdom regulations were amended to replace therms with ...

  5. Rod (unit) - Wikipedia

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

    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 16 + 1 ⁄ 2 feet, equal to exactly 1 ⁄ 320 of a mile, or 5 + 1 ⁄ 2 yards (a quarter of a surveyor's chain), and is exactly 5.0292 meters.

  6. Gunta - Wikipedia

    en.wikipedia.org/wiki/Gunta

    1 anna = 7.5624 square yards = 6.3232 square metres; 1 gunta = 120.999 square yards = 101.1714 square metres = 16 annas; 1 guntha (R) = 33 ft (10 m) × 33 ft (10 m) = 1,089 sq ft (101.2 m 2) [1] [2] 40 gunthas = 1.0 acre; 4 acre = 1 fg

  7. Cent (area) - Wikipedia

    en.wikipedia.org/wiki/Cent_(area)

    The cent is a customary unit of measurement still used in some parts of southern Indian states such as Andhra Pradesh, Telangana, Kerala, Tamil Nadu and Karnataka despite the usual use of metric units for other instances. One cent is defined as an area of ⁄100 of an acre (40.5 m 2; 435.6 sq ft). It is still used in many news reports [1] and ...

  8. Floor area ratio - Wikipedia

    en.wikipedia.org/wiki/Floor_area_ratio

    Floor Area ratio is sometimes called floor space ratio (FSR), floor space index (FSI), site ratio or plot ratio. The difference between FAR and FSI is that the first is a ratio, while the latter is an index. Index numbers are values expressed as a percentage of a single base figure. Thus an FAR of 1.5 is translated as an FSI of 150%.

  9. Ancient Roman units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Roman_units_of...

    47.1 sq ft scrupulum 100 1 ⁄ 288: 8.76 m 2 94.3 sq ft duo scrupula 200 1 ⁄ 144: 17.5 m 2 188 sq ft sextula 400 1 ⁄ 72: 35.0 m 2 377 sq ft sicilicus 600 1 ⁄ 48: 52.6 m 2 566 sq ft semiuncia 1,200 1 ⁄ 24: 105 m 2 1,130 sq ft uncia 2,400 1 ⁄ 12: 210 m 2 2,260 sq ft sextans 4,800 1 ⁄ 6: 421 m 2 4,530 sq ft quadrans 7,200 1 ⁄ 4