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  2. 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.

  3. Tamil units of measurement - Wikipedia

    en.wikipedia.org/wiki/Tamil_units_of_measurement

    18 kulies = 1 lacham; 16 lachams = 1 acre; Paddy Culture (P.C.) 12 kulies = 1 lacham; 24 lachams = 1 acre; Units of ancient trade. Balance weights. Thanga edaihal ...

  4. 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]

  5. Hectare - Wikipedia

    en.wikipedia.org/wiki/Hectare

    The hectare (/ ˈ h ɛ k t ɛər,-t ɑːr /; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm 2), that is, 10,000 square metres (10,000 m 2), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about 0.405 hectares and one hectare contains about ...

  6. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    1 hectare = 100 ares = 10,000 square metres = 0.01 square kilometres; Other uncommon metric units of area include the tetrad, the hectad, and the myriad. 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.

  7. Acre-foot - Wikipedia

    en.wikipedia.org/wiki/Acre-foot

    The acre-foot is a non-SI unit of volume equal to about 1,233 m 3 commonly used in the United States in reference to large-scale water resources, such as reservoirs, aqueducts, canals, sewer flow capacity, irrigation water, [1] and river flows. An acre-foot equals approximately an eight-lane swimming pool, 82 ft (25 m) long, 52 ft (16 m) wide ...

  8. Measurement of land in Punjab - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_land_in_Punjab

    20 Marla = 1 Kanal; 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 ...

  9. Talk:Acre - Wikipedia

    en.wikipedia.org/wiki/Talk:Acre

    One Acre is equal to 1 chain by 1 furlong. Noting that 4 rods is a chain, and 10 chain is a furlong, then one acre is also equal to 4 rods by 40 rods (160 squar rods). After 1581 an acre is considered to be measured as 1 chain by 1 furlong.