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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. Cuerda - Wikipedia

    en.wikipedia.org/wiki/Cuerda

    In Puerto Rico, a cuerda is a traditional unit of land area nearly equivalent to 3,930 square meters, [1] [2] or 4,700 square yards, 0.971 acre, or 0.393 hectare (ha). The precise conversion is 1 cuerda = 3,930.395625 m 2. [2] The term "Spanish acre" instead has been used sometimes by mainlanders. [1]

  4. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    Definition Relation to SI units acre (international) ac ≡ 1 ch × 10 ch = 4840 sq yd: ≡ 4 046.856 4224 m 2: acre (US survey) ac ≡ 10 sq ch = 4840 sq yd, also 43 560 sq ft: ≈ 4 046.873 m 2 [17] are: a ≡ 100 m 2: ≡ 100 m 2: barn: b ≡ 10 −28 m 2: ≡ 10 −28 m 2: barony: ≡ 4000 ac ≡ 1.618 742 568 96 × 10 7 m 2: board: bd ≡ ...

  5. Puerto Rican units of measurement - Wikipedia

    en.wikipedia.org/wiki/Puerto_Rican_units_of...

    In Puerto Rico, a cuerda is a traditional unit of land area nearly equivalent to 3,930 square meters, or 4,700 square yards, 0.971 acre, or 0.393 hectare (ha). The precise conversion is 1 cuerda = 3,930.395625 m 2. The term "Spanish acre" instead has been used sometimes by mainlanders.

  6. Measurement of land in Punjab - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_land_in_Punjab

    A killa or acre is measured rectangularly, reckoned as an area 36 karams (198 ft) x 40 karams (220 ft) (43,560 square ft). 1 /5th of a killa or acre is known as bigha 1 /5th of a killa or acre is known as bigha

  7. Tamil units of measurement - Wikipedia

    en.wikipedia.org/wiki/Tamil_units_of_measurement

    The Tamil units of measurement is a system of measurements that was traditionally used in ancient Tamil-speaking parts of South India.. These ancient measurement systems spanned systems of counting, distances, volumes, time, weight as well as tools used to do so.

  8. Glossary of geography terms (A–M) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_geography_terms...

    A unit of length equal to 66 feet (20.117 m), used especially in public land surveys in the United States; 10 square chains is equal to 1 acre (0.40 hectares). Though the literal chains used to measure this distance have long been superseded, surveying tapes are often still called "chains", and measuring with a tape may be called "chaining".

  9. Spanish units of measurement - Wikipedia

    en.wikipedia.org/wiki/Spanish_units_of_measurement

    The vara can be seen in many deeds as late as the mid to late 1900s. 1 acre (0.405 ha) is equivalent to 5,645.376 Texan square varas. A league is equivalent to 5,000 varas squared or 4,428.4 acres (1,792.11 ha). Standardisation of measurement in Texas came with the introduction of varas, cordeles, and leagues.