The fen () in Mandarin, fan in Cantonese or hun in Taiwanese, is a traditional Chinese unit of measurement for land area. One fen equals 1/10th of a mu in China mainland, Hong Kong and Taiwan.
In China mainland,
In Hong Kong and Macau, 1 fen = 1âÂÂ10 mu = 76.14 square meters = 91.06 square yards.
In Taiwan and Japan, 1 fen = 1âÂÂ10 jia = 969.92 square meters = 10,440 square feet.
Taiwan used to be ruled by Holand and then by Japan. Its measurement system was influenced by these two countries. And 1 fen has been set to be 1/10 of a Jia instead of a mu.
For details, please see article Mu (land).
It is also the name of a Chinese website 1Point3Acres.