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Chinese units of measurement, known in Chinese as the shìzhì ("market system"), are the traditional units of measurement of the Han Chinese.Although Chinese numerals have been decimal (base-10) since the Shang, several Chinese measures use hexadecimal (base-16).
Li or ri (Chinese: 里, lǐ, or 市里, shìlǐ), also known as the Chinese mile, [citation needed] is a traditional Chinese unit of distance. The li has varied considerably over time but was usually about one third of an English mile and now has a standardized length of a half- kilometer (500 meters or 1,640 feet or 0.311 miles ).
In the People's Republic of China, since 1984, the chi has been defined as exactly 1/3 of a metre, i.e., 33 + 1 ⁄ 3 cm (13.1 in). However, in the Hong Kong SAR the corresponding unit, pronounced tsek (cek3) in Cantonese, is defined as exactly 0.371475 m (1 ft 2.6250 in) or 1 7/32 ft. [2] The two units are sometimes referred to in English as "Chinese foot" and "Hong Kong foot".
Fen (Chinese: 分; pinyin: fēn), called fan in Cantonese, hun in Taiwanese, phân in Vietnamese, or "candareen" [a] in English, is a traditional Chinese unit for weight measurement. It originated in China before being introduced to neighboring countries in East Asia.
The Chinese volume units listed in the "Chinese Name Plan for Unified Metric Units of Measurement" of the People's Republic of China in 1959 are Chinese dan, dou, sheng, and ge. The basic unit remains sheng , and one sheng is equal to one liter.
A mace (Chinese: 錢; pinyin: qián; Hong Kong English usage: tsin; [2] Southeast Asian English usage: chee [3]) is a traditional Chinese measurement of weight in East Asia that was also used as a currency denomination. It is equal to 10 candareens and is 1 ⁄ 10 of a tael or approximately 3.78 grams.
The ge is a traditional Chinese unit of volume equal to 10 shao or 1 ⁄ 10 sheng.Its exact value has varied over time with the size of the sheng.. In 1915, the Beiyang Government set the ge as equivalent to 103.54688 milliliters (3.501 U.S. fl oz). [1]
Ceyuan haijing (Chinese: 測圓海鏡; pinyin: Cèyuán Hǎijìng), or Sea-Mirror of the Circle Measurements, is a collection of 692 formula and 170 problems related to inscribed circle in a triangle, written by Li Zhi (or Li Ye) (1192–1272 AD).