Convert Hand to...
|1 hand in ...||... is equal to ...|
|SI units||101.6 mm
|Imperial/US unit(s)||4 in|
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|Astronomical Unit [AE]|
The hand is a non-SI unit of measurement of length standardized to 4 inches (101.6 mm). It is used to measure the height of horses in some English-speaking countries, including Australia, Canada, the Republic of Ireland, the United Kingdom and the United States. It was originally based on the breadth of a human hand.
The adoption of the international inch in 1959 allowed for a standardized imperial form and a metric conversion. It may be abbreviated to "h" or "hh".
Although measurements between whole hands are usually expressed in what appears to be decimal format, the subdivision of the hand is not decimal but is in base 4, so subdivisions after the radix point are in quarters of a hand, which are inches. Thus, 62 inches is fifteen and a half hands, or 15.2 hh (normally said as "fifteen-two", or occasionally in full as "fifteen hands two inches").
This article uses material from the Wikipedia article "Hand (unit)", which is released under the Creative Commons Attribution-Share-Alike License 3.0.