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  2. Hectare - Wikipedia

    en.wikipedia.org/wiki/Hectare

    The entire yellow square is one square mile. The hectare (/ ˈhɛktɛər, - tɑːr /; 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.

  3. Maltese units of measurement - Wikipedia

    en.wikipedia.org/wiki/Maltese_units_of_measurement

    Table of length units. The Maltese inch. Exactly 55⁄64 imperial inches. This unit is not in the 1921 act. The Maltese hand span, equivalent to the foot. Exactly 10 + 5⁄16 imperial inches. This is exactly 82 + 1⁄2 inches, or 6 ft 10 + 1⁄2 in. It corresponds to the fathom, but was used in both land and sea contexts.

  4. Nepalese customary units of measurement - Wikipedia

    en.wikipedia.org/wiki/Nepalese_customary_units...

    In a nutshell, The following is a partial list of everyday units used to calculate land area in Nepal. [3] [4]1 Khetmuri = 25 Ropani; 1 Bigha (बिघा) = 20 Kattha (कठ्ठा) = 6772.63 m 2 = 72900 sq.ft. = 13.31 Ropani

  5. International System of Units - Wikipedia

    en.wikipedia.org/wiki/International_System_of_Units

    The conversion between different SI units for one and the same physical quantity is always through a power of ten. This is why the SI (and metric systems more generally) are called decimal systems of measurement units. [10] The grouping formed by a prefix symbol attached to a unit symbol (e.g. ' km ', ' cm ') constitutes a new inseparable unit ...

  6. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    Area is the measure of a region 's size on a surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object. Area can be understood as the amount of material with a given thickness that would be necessary to ...

  7. United States customary units - Wikipedia

    en.wikipedia.org/wiki/United_States_customary_units

    Length. For measuring length, the U.S. customary system uses the inch, foot, yard, and mile, which are the only four customary length measurements in everyday use. From 1893, the foot was legally defined as exactly 1200⁄3937 m (approximately 0.304 8006 m). [13] Since July 1, 1959, the units of length have been defined on the basis of 1 yd = 0 ...

  8. Geographic coordinate conversion - Wikipedia

    en.wikipedia.org/wiki/Geographic_coordinate...

    Geographic coordinate conversion has applications in cartography, surveying, navigation and geographic information systems. In geodesy, geographic coordinate conversion is defined as translation among different coordinate formats or map projections all referenced to the same geodetic datum. [1] A geographic coordinate transformation is a ...

  9. Biblical and Talmudic units of measurement - Wikipedia

    en.wikipedia.org/wiki/Biblical_and_Talmudic...

    The mile (Mil) is thus about 963 or 1146 meters (3160 or 3760 ft) — approximately six or seven tenths of a mile, and significantly shorter than the modern statute or land mile of 5280 ft or 1760 yd (approximately 1.6 km). The precise width of the etzba (finger) has been a subject of controversy among halakhic authorities. The best known are ...