Ring Size Chart

This list should help you identify your size. A ring should just be able to fit over the largest part of your finger which is the knuckle for most people. The ring size standards included in this list are from the US & Canada, United Kingdom & Australia with an additional metric diameter and circumference in millimetres.

Diameter Circumference UK Size US Size
13.21 41.50 D 2
13.41 42.13 D 1/2 2 1/4
13.61 42.76 E 2 1/2
13.83 43.45 E 1/2 2 3/4
14.05 44.14 F 3
14.15 44.45 F 1/2 3 1/8
14.25 44.77 F 3/4 3 1/4
14.36 45.11 G 3 3/8
14.45 45.40 G 1/4 3 1/2
14.56 45.74 G 1/2 3 5/8
14.65 46.02 H 3 3/4
14.86 46.68 H 1/2 4
15.04 47.25 I 4 1/4
15.27 47.97 I 1/2 4 1/2
15.40 48.38 J 4 5/8
15.53 48.79 J 1/4 4 3/4
15.70 49.32 J 1/2 5
15.80 49.64 K 5 1/8
15.90 49.95 K 1/4 5 1/4
16.00 50.27 K 1/2 5 3/8
16.10 50.58 L 5 1/2
16.30 51.21 L 1/4 5 3/4
16.41 51.55 L 1/2 5 7/8
16.51 51.87 M 6
16.71 52.50 M 1/2 6 1/4
16.92 53.16 N 6 1/2
17.13 53.82 N 1/2 6 3/4
17.35 54.51 O 7
17.45 54.82 O 1/2 7 1/4
17.75 55.76 P 7 1/2
17.97 56.45 P 1/2 7 3/4
18.19 57.15 Q 8
18.35 57.65 Q 1/2 8 1/4
18.53 58.21 Q 3/4 8 1/2
18.61 58.47 R 8 5/8
18.69 58.72 R 1/4 8 3/4
18.80 59.06 R 1/2 8 7/8
18.89 59.34 R 3/4 9
19.10 60.00 S 9 1/8
19.22 60.38 S 1/4 9 1/4
19.31 60.66 S 1/2 9 3/8
19.41 60.98 S 3/4 9 1/2
19.51 61.29 T 9 5/8
19.62 61.64 T 1/4 9 3/4
19.84 62.33 T 1/2 10
20.02 62.89 U 10 1/4
20.20 63.46 U 1/2 10 1/2
20.32 63.84 V 10 5/8
20.44 64.21 V 1/4 10 3/4
20.68 64.97 V 1/2 11
20.76 65.22 W 11 1/8
20.85 65.50 W 1/4 11 1/4
20.94 65.78 W 1/2 11 3/8
21.08 66.22 W 3/4 11 1/2
21.18 66.54 X 11 5/8
21.24 66.73 X 1/4 11 3/4
21.30 66.92 X 1/2 11 7/8
21.49 67.51 Y 12
21.69 68.14 Y 1/2 12 1/4
21.89 68.77 Z 12 1/2
22.10 69.43 Z +1/2 12 3/4
22.33 70.15 Z+1 13
22.60 71.00 Z+1.5 13.5