Asian units for length: a non-exhaustive list.
1 Chi (China)= m=
cm
1 Chi (Hong-Kong)= m
1 Chi (Taiwan)=1 shaku (Japan)==0.3030 m
1 chek = m
1 tsun = chek (Hong-Kong)
1 tsun = cm (Taiwan, China)
1 fan= tsun
1 shaku (Japan, korean “ja”)= m
1 ken (Japan)=1 hiro=6 shaku= meters
1 jo (Japan)=10 shaku= meters
1 cho (Japan)=360 shaku= meters
1 ri (Japan)=12960 skaku= meters
1 sun (Japan)==
mm
1 bu (Japan)==
3.030 mm
1 rin (Japan)==
0.3030 mm
1 mo (Japan)==
0.03030 mm
10 chi = 17 hang
Enjoy!