How to measure a ring

[When measuring with your own finger]

① Wrap paper or string around the thickest part of the finger you want to wear the ring on (around the second joint) (so that it fits your finger with just the right amount of fit, just like how you would wear a ring).

② Make a mark where the wrapped string joins, measure the length between the marks, and check the size from the table below.


[When measuring from a ring you own]
Please measure the inner diameter of your ring and check the size in the table below.

Below is an example of a common ring size chart.

Finger circumference (mm)	US size	JP size
44.2	3	4
45.5	3.5	5
46.8	4	7
48.0	4.5	8
49.3	5	9
50.6	5.5	11
51.9	6	12
53.1	6.5	13
54.4	7	14
55.7	7.5	15
57.0	8	16
58.3	8.5	17
59.5	9	18
60.8	9.5	19
62.1	10	20
63.4	10.5	twenty two
64.6	11	twenty three
65.9	11.5	twenty four

This chart is just a guide. Sizes vary depending on finger shape and ring width, so we recommend using a size measuring device to determine your final size.