A mace (Chinese: 錢; pinyin: qián; Hong Kong English usage: tsin; Southeast Asian English usage: chee) 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. A troy mace is approximately 3.7429 grams. In Hong Kong, one mace is 3.779936375 grams. and in Ordinance 22 of 1884, it is 2⁄15 ounces avoirdupois. In Singapore, one mace (referred to as chee) is 3.77994 grams.
In imperial China, 10 candareens equaled 1 mace which was 1⁄10 of a tael and, like the other units, was used in weight-denominated silver currency system. A common denomination was 7 mace and 2 candareens, equal to one silver Chinese yuan.