Imperial units commonly used units for length are (li), (tseung/cheung), (tsek/chek), (tsun/chun), (fen/fan) in descending scale order. These units are now rarely used in daily life, the imperial and metric systems being preferred. The imperial equivalents are written with the same basic Chinese characters as the Chinese system. In order to distinguish between the units of the two systems, the units can be prefixed with "Ying" () for the Imperial system and "Wa" () for the Chinese system. In writing, derived characters are often used, with an additional (mouth) radical to the left of the original Chinese character, for writing imperial units.
Imperial House of Japan family has been supported by an official civil list sanctioned by the Japanese government. When Emperor Hirohito passed away, he left a personal fortune of £11 million in 1989. In 2017, Emperor Akihito had an estimated net worth of US$40 million. Currently the primary imperial properties are the Tokyo Imperial Palace and the Kyoto Imperial Palace. The estimated landholdings is . The Tōgū Palace is located in the larger Akasaka Estate where numerous other imperial family members reside. There are privately used imperial villas in Hayama, Nasu and the Suzaki Imperial Villa in Shimoda. The Katsura Imperial Villa, Shugakuin Imperial