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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, Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar, Singapore and Hong Kong.

  3. Acre - Wikipedia

    en.wikipedia.org/wiki/Acre

    One acre equals 1 ⁄ 640 (0.0015625) square mile, 4,840 square yards, 43,560 square feet, [2] or about 4,047 square metres (0.4047 hectares) (see below).While all modern variants of the acre contain 4,840 square yards, there are alternative definitions of a yard, so the exact size of an acre depends upon the particular yard on which it is based.

  4. Katha (unit) - Wikipedia

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

    In Bihar, one Katha may vary from 720 to 3,267 square feet (ft 2). 1 Bigha = 20 Katha. One katha is divided in 20 dhur. One dhur is subdivided in 20 dhurki. The origin of the term and measurement unit was during the Pala Empire. [1] 1 Decimal = 435.6 square feet & 1 Acre = 100 decimal. [2] [3] In Patna & Arrah, 1 Katha is equal to 1,361.25 ft 2 ...

  5. Help:Convert units - Wikipedia

    en.wikipedia.org/wiki/Help:Convert_units

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  6. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity.

  7. Measurement of land in Punjab - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_land_in_Punjab

    8 Kanal = 1 Acre (Ghumman) 1 Acre = 36 Karam (north to south) X 40 Karam (east to west) Bigha-Biswa system conversion to current Acre system 1 Karam = 57.157 inch; 1 Biswansi = 1 Karam X 1 Karam; 20 Biswansi = 1 Biswa; 20 Biswa = 1 Bigha; 4 Bigha और 16 Biswa = 1 Acre; Killa-Biswa-Bigha system (old system, no longer used since 1957) 1 Karam ...

  8. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    The acre is also commonly used to measure land areas, where 1 acre = 4,840 square yards = 43,560 square feet. An acre is approximately 40% of a hectare. On the atomic scale, area is measured in units of barns, such that: [13] 1 barn = 10 −28 square meters. The barn is commonly used in describing the cross-sectional area of interaction in ...

  9. Acre-foot - Wikipedia

    en.wikipedia.org/wiki/Acre-foot

    As the name suggests, an acre-foot is defined as the volume of one acre of surface area to a depth of one foot.. Since an acre is defined as a chain by a furlong (i.e. 66 ft × 660 ft or 20.12 m × 201.17 m), an acre-foot is 43,560 cubic feet (1,233.5 m 3).