Ring Sizes

We use US & Canada ring sizes on our website. You can use the table below to convert this sizing into your local sizing system.

Ring Size Conversion Chart 

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EU flag

britain flag australia flag south africa flag

germany flag

japan flag

switzerland flag
Inside Diameter (mm)USA/CanadaEUUK, Australia & South AfricaGermanyJapanSwitzerland
14.013441444
14.545½14½6⅓
14.97447157
15.294815¼88
15.6154915¾9
16.1-1610½10¾
16.5665216½1212¾
16.8853171314
17.275417¼1415¼
17.7-17¾1516½
18.15857181617¾
18.475818½1718½
199-191820
19.436119½1921
19.751062202021¾
20.0610½6320¼2222¾
20.611-20¾2324
21.0211½66212425¾
21.34126721¼2527½
21.6612½68Z21¾2628¾
22.291370-222729¼