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2. Unit of length - Wikipedia

   en.wikipedia.org/wiki/Unit_of_length

   The basic unit of length in the imperial and U.S. customary systems is the yard, defined as exactly 0.9144 m by international treaty in 1959. [2] [5] Common imperial units and U.S. customary units of length include: [6] thou or mil (1 ⁄ 1000 of an inch) inch (25.4 mm) foot (12 inches, 0.3048 m) yard (3 feet, 0.9144 m)

3. International yard and pound - Wikipedia

   en.wikipedia.org/wiki/International_yard_and_pound

   In 1866, the U.S. Congress passed a law that allowed, but did not require, the use of the metric system in trade and commerce. Included in the law was a table of conversion factors between the customary (i.e. English-derived) and metric units, among them a definition of the meter in terms of the yard, and the kilogram in terms of the pound.

4. System of units of measurement - Wikipedia

   en.wikipedia.org/wiki/System_of_units_of_measurement

   The American football field, which has a playing area 100 yards (91.4 m) long by 160 feet (48.8 m) wide. This is often used by the American public media for the sizes of large buildings or parks. It is used both as a unit of length (100 yd or 91.4 m, the length of the playing field excluding goal areas) and as a unit of area (57,600 sq ft or ...

5. Template:Convert/list of units/length - Wikipedia

   en.wikipedia.org/wiki/Template:Convert/list_of...

   Length; system unit code (other) symbol or abbrev. notes conversion factor/m combinations SI: gigametre: Gm Gm US spelling: gigameter 1.0 Gm (620,000 mi) megametre: Mm Mm US spelling: megameter

6. Foot (unit) - Wikipedia

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

   The Indian survey foot is defined as exactly 0.304 7996 m, [35] presumably derived from a measurement of the previous Indian standard of the yard. However, it is now obsolete as the current National Topographic Database of the Survey of India is based on the metric WGS-84 datum, [36] which is also used by the Global Positioning System.

7. List of conversion factors - Wikipedia

   en.wikipedia.org/wiki/List_of_conversion_factors

   Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article. Exceptions are made if the unit is commonly known by another name (for example, 1 micron = 10 −6 metre).

8. 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 ...

9. Help:Convert units - Wikipedia

   en.wikipedia.org/wiki/Help:Convert_units

   Metric prefixes; Text Symbol Factor or; yotta Y 10 24: 1 000 000 000 000 000 000 000 000: zetta Z 10 21: 1 000 000 000 000 000 000 000: exa E 10 18: 1 000 000 000 000 000 000: peta P 10 15: 1 000 000 000 000 000: tera T