Convert from ri [Japan] to thou

Unit Definition (ri [Japan])
The ri is a traditional Japanese unit of distance, sometimes called the Japanese league because it is of similar length to the European league. The ri equals 2160 ken or 12 960 shaku (the shaku being the Japanese equivalent of the foot). This is about 3927 meters or 2.44 statute miles.

Unit Definition (thou)
An inch is an Imperial unit of length. Sweden also briefly had a "decimal inch" based on the metric system: see below for more.