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Ring Sizing Chart


Need help with sizing? 
We recommend that you measure the internal diameter of an existing ring and compare it with the sizing chart below. 

 

Ring Sizing Chart
Measure the internal diameter of the ring
Internal Diameter Ring Size
MM INCH US/ CA UK/AUS
14.1 0.55 3 F
14.5 0.57 3.5 G
14.9 0.58 4 H
15.3 0.60 4.5 I
15.7 0.61 5 J 1/2
16.1 0.63 5.5 K 1/2
16.5 0.65 6 L 1/2
16.9 0.66 6.5 M 1/2
17.3 0.68 7 N 1/2
17.7 0.69 7.5 O 1/2
18.19 0.71 8 P 1/2
18.5 0.73 8.5 Q 1/2
18.9 0.74 9 R 1/2
19.40 0.76 9.5 S 1/2
19.80 0.77 10 T 1/2
20.2 0.79 10.5 U 1/2
20.6 0.81 11 V 1/2
21 0.82 11.5 W 1/2
21.4 0.84 12 X 1/2
21.8 0.85 12.5 Z