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  2. Traditional French units of measurement - Wikipedia

    en.wikipedia.org/wiki/Traditional_French_units...

    This was the main square perch in old French surveying. It is a square 22 pieds du roi on each side. vergée: 12 100 ~1277 m 2 ~1527 sq yd A square 5 perches on each side, or one quarter of an acre. acre, or arpent carré: 48 400 ~5107 m 2 ~6108 sq yd, or ~1.262 acres The French acre is a square 10 perches (one arpent) on each side. (Does not ...

  3. 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.

  4. Vergée - Wikipedia

    en.wikipedia.org/wiki/Vergée

    The surveying perch measured 22 French feet. In French North America, it was also equal to 25 square perches, but the royal perch of 18 feet was used, yielding a vergée of 8100 square feet (854.7 m 2) In Guernsey, a vergée (Guernésiais: vergie) is 17,640 square feet (1,639 m 2). It is 40 (square) Guernsey perches.

  5. 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).

  6. English units - Wikipedia

    en.wikipedia.org/wiki/English_units

    30.25 square yards. A square rod is also known as a square pole or a square perch. Sometimes the word 'square' is omitted when the context clearly indicates that the subject is area, notably so in the case of British allotment gardens. Rood: 1,012 m 2: One quarter of an acre; one 'furlong' in length by one 'rod' in width; 40 square 'rods'. The ...

  7. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    Exceptions are made if the unit is commonly known by another name (for example, 1 micron = 10 −6 metre). Within each table, the units are listed alphabetically, and the SI units (base or derived) are highlighted.

  8. 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.

  9. Irish measure - Wikipedia

    en.wikipedia.org/wiki/Irish_measure

    The Irish acre or plantation acre measured one Irish chain by one Irish furlong, or 4 Irish perches by 40, or 7840 square yards: approximately 0.66 hectares or 1.62 statute acres. [54] The Lancashire acre around the Solway Firth and the Churchland acre in Yorkshire were the same size, which Frederic Seebohm in 1914 connected to the erw of Gwent ...