里（长度单位）

安平桥又称五里桥，长度刚好五华里

里是东亚传统的长度单位，起源于中国周代，当时一里为18引=1800尺，战国、秦汉一里约415.8米，后世实际长度历代不同，传到日本、朝鲜半岛、越南后也有变化；至近代于华语圈也称作华里以和英里和公里区别。

现在一般1里等于500米，2里等于1公里。

日本大宝律令规定“里＝5町＝300步”1里=533.5m左右，明治维新以后规定1里相当于3.927km直至现在。

另见

• 万里长城
• 记里鼓车
• 中国度量衡

参考文献

• Homer H. Dubs (1938): The History of the Former Han Dynasty by Pan Ku. Vol. One. Translator and editor: Homer H. Dubs. Baltimore. Waverly Press, Inc.
• Homer H. Dubs (1955): The History of the Former Han Dynasty by Pan Ku. Vol. Three. Translator and editor: Homer H. Dubs. Ithaca, New York. Spoken Languages Services, Inc.
• Hulsewé, A.F.P. (1961). "Han measures." A. F. P. Hulsewé, T'oung pao Archives, Vol. XLIX, Livre 3, pp. 206–207.
• Needham, Joseph. (1986). Science and Civilization in China: Volume 4, Physics and Physical Technology, Part 3, Civil Engineering and Nautics. Taipei: Caves Books Ltd.

外部链接

• Chinese Imperial Distance converter from Convert Me