Convert ri (Japanese league) to perch (Ireland)
Selected category: length.
Definition and details for ri (Japanese league):
Ri is a traditional Japanese unit of distance, which is sometimes called the "Japanese league", because it is similar to the European league. One ri is equal to 12 960 shaku (one shaku equals to 10/33 m). This is about 3927 meters.
Definition and details for perch (Ireland):
Perch is a traditional unit of length. In Ireland perch is defined as 21 feet or 6.4008 meters.