International Ring Sizer

INTERNATIONAL SIZE CONVERSION CHART

If ordering from outside of the U.S or Canada, determine your ring size according to your country’s standard. Then use following conversion chart to convert to the corresponding U.S ring size to place your order.

DIAMETER
(MM)
USA & CA UK, EU & AU JP
14.9 4 H 1/2 7
15.3 4.5 I 1/2 8
15.7 5 J 1/2 9
16.1 5.5 K 1/2 10
16.5 6 L 1/2 11
16.9 6.5 M 1/2 13
17.3 7 N 1/2 14
17.7 7.5 O 1/2 15
18.1 8 P 1/2 16
18.5 8.5 Q 1/2 17
19 9 R 1/2 18
19.4 9.5 S 1/2 19
19.8 10 T 1/2 20
20.2 10.5 U 1/2 22
20.6 11 V 1/2 23
21 11.5 W 1/2 24
21.4 12 X 1/2 25
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