How To Find Your Ring Size

METHOD 1

  1. Get a ruler
  2. Make sure you measure the diameter
  3. It should be the INNER diameter in MM

METHOD 2

  1. Cut a piece of Twine or Thread
  2. Mark where the Twine or Thread crosses each other
  3. Measure the length of the Twine or Thread
  4. Look up at the table below to find your ring size

Ring Size Table

Finger Circumference (mm) Ring Inside Diameter (mm) Japanese Size
48.7 15.5 7
49.3 15.7 7.5
50.0 15.9 8
50.6 16.1 8.5
51.2 16.3 9
51.9 16.5 9.5
52.5 16.7 10
53.1 16.9 10.5
53.8 17.1 11
54.4 17.3 11.5
55.1 17.5 12
55.7 17.7 12.5
56.3 17.7 13
57.0 17.9 13.5
57.6 18.1 14
58.9 18.3 14.5
59.5 18.5 15
60.2 18.8 15.5
60.8 19.0 16
61.4 19.2 16.5
62.7 19.4 17
63.4 19.6 17.5
64.0 19.8 18
64.6 20.0 18.5
65.3 20.2 19
65.9 20.4 19.5
66.6 20.6 20
67.2 20.8 20.5
67.8 21.0 21
68.5 21.2 21.5
69.1 21.4 22