Japan
pre-metric units of mass

hiyak kin¹

kan or kwan or kwamme

16

kin²

100

momme

160

1000

16,000

fun

10

1600

10,000

160,000

rin

10

100

16,000

100,000

1,600,000

10

100

1,000

160,000

1,000,000

16,000,000

Legal value after 1891

3.75
mg

37.5
mg

375
mg

3.75
g

600
g

3.75
kg

60
kg

0.058
gr av

0.579
gr av

5.79
gr av

2.12
drachm

1.32
pounds

8.28
pounds

132.3
pounds

1. Foreigners in the open ports often referred to 100 kin as a picul.

2. Foreigners in the open ports often referred to a kin as a catty. In the 19th century foreign traders often considered the kin equal to the Chinese export catty, which was equivalent to 1 1/3 pounds avoirdupois.

There is also a kin = 120 momme, used in certain trades, which appears to be a local approximation to the British imperial pound.

The ton was also in use in Japan, see ton.

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