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International Ring Size Conversion Chart

Inner Diameter (mm)U.S & CanadaU.K, Ireland, Australia, and New ZealandChina, Japan, India, and South AfricaItaly, Netherlands, Spain, and SwitzerlandSouth Korea
13.001.75C1/211
13.332D21.752
13.672.5E333
14.003F44.254
14.333.25F1/254.755
14.673.75G1/2666
15.004.25H1/27.57
15.334.5I888
15.675J1/299.259
16.005.5K1/21010.2510
16.335.75L11.2511
16.676.25M1212.512
17.006.5M1/21313.2513
17.337N1/21414.514
17.677.5O1/21515.7515
18.007.75P16.2516
18.338.25Q17.517
18.678.75R1918
19.009R1/21819.519
19.339.5S1/21920.7520
19.6710T1/2202221

Tips to consider when measuring a ring size.

If your knuckle is thicker than the wearing part, it is recommended that you wear one size larger.

If your hands tend to swell at morning and night, you should consider wearing one size larger.

It is necessary to reduce the error through multiple measurements rather than a single measurement to obtain a more accurate size.

*If you’re still unsure about your ring size, please don’t hesitate to contact us for assistance!

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