Fen, called fan in Cantonese, hun in Taiwanese, phân in Vietnamese, or "candareen" 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 fen equals 0.5 grams in mainland China, 0.375 grams in Taiwan, 0.37799 grams in Hong Kong, Singapore and Malaysia, and 0.378 grams in Vietnam.
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