Qian (simplified Chinese: 钱; traditional Chinese: 錢; pinyin: qián), called tsin (cin4) in Cantonese, tiền or đồng in Vietnamese, or "Chinese ounce" or "mace"[a] in English, is a traditional Chinese unit for weight measurement. It originated in China before being introduced to neighboring countries in East Asia.
Nowaday, the mass of 1 qian equals 5 grams in mainland China,[2] 3.75 grams in Taiwan,
[3]
3.7799 grams in Hong Kong, Singapore and Malaysia,[4][5][6] and 3.78 grams in Vietnam.[7]
Qian is mostly used in the traditional markets, and famous for measuring gold, silver and Chinese medicines.
[2]
China Mainland
On June 25, 1959, the State Council of the People's Republic of China issued the "Order on the Unified Measurement System", retaining the market measure system, with minor amendment. [8]
Table of mass units in the People's Republic of China since 1959[2]
where 1 qian equals 5 grams, and 10 qiags equals 1 liang. The traditional Chinese medicine measurement system remains unchanged.[2]
Taiwan
In 1895, Taiwan was ceded to Japan from China. The Japanese implemented the metric system, but the Taiwanese still followed their own habits and continued to use the old weights and measures of the Qing Dynasty. 1 Taiwan qian is equal to 3.75 grams, or 1/10 Taiwan liang.
[10]
^ "mace" is either (i) a borrowing from Dutch, or (ii) a borrowing from Malay, both were translation of the Chinese measure word "兩" before Pinyin and Jyutping were available for direct transcription.[1]