Size Guide

International Ring Size Conversion Chart

[table width=”500″ colwidth=”20|100|50″ colalign=”center|center|center|center|center|center|center|center|center|center”]
inside diameter,,inside circumference,,sizes,,,,,
mm,inches,mm,inches,british & australian, us & canada,french & russian,german,japanese,swiss
9.91,0.390,31.13,1.22,-,0000,-,-,-,-
10.72,0.442,33.68,1.39,-,00,-,-,-,-
11.53,0.454,36.22,1.43,-,0,-,-,-,-
11.95,0.474,37.54,1.49,A,1/2,-,-,-,-
12.18,0.482,38.26,1.51,A 1/2,3/4,-,-,-,-
12.37,0.487,38.86,1.53,B,1,-,-,1,-
12.60,0.496,39.58,1.56,B 1/2,1 1/4,-,-,-,-
12.78,0.503,40.15,1.58,C,1 1/2,-,-,-,-
13.00,0.512,40.84,1.61,C 1/2,1 3/4,-,-,-,-
13.21,0.520,41.50,1.63,D,2,41 1/2,13 1/2,2,1 1/2
13.41,0.528,42.13,1.66,D 1/2,2 1/4,-,-,-,-
13.61,0.536,42.76,1.68,E,2 1/2,42 3/4,13 3/4,3,2 3/4
13.83,0.544,43.45,1.71,E 1/2,2 3/4,-,-,-,-
14.05,0.553,44.14,1.74,F,3,44,14,4,4
14.15,0.557,44.45,1.75,F 1/2,3 1/8,-,-,-,-
14.25,0.561,44.77,1.76,F 3/4,3 1/4,-,-,-,-
14.36,0.565,45.11,1.77,G,3 3/8,45 1/4,-,5,5 1/4
14.45,0.569,45.40,1.79,G 1/4,3 1/2,-,14 1/2,-,-
14.56,0.573,45.74,1.80,G 1/2,3 5/8,-,-,6,-
14.65,0.577,46.02,1.81,H,3 3/4,46 1/2,-,-,6 1/2
14.86,0.585,46.68,1.84,H 1/2,4,-,15,7,-
15.04,0.592,47.25,1.86,I,4 1/4,47 3/4,-,-,7 3/4
15.27,0.601,47.97,1.89,I 1/2,4 1/2,-,15 1/4,8,-
15.40,0.606,48.38,1.90,J,4 5/8,49,15 1/2,-,9
15.53,0.611,48.79,1.92,J 1/4,4 3/4,-,-,-,-
15.70,0.618,49.32,1.94,J 1/2,5,-,15 3/4,9,-
15.80,0.622,49.64,1.95,K,5 1/8,50,-,-,10
15.90,0.626,49.95,1.97,K 1/4,5 1/4,-,-,-,-
16.00,0.630,50.27,1.98,K 1/2,5 3/8,-,-,10,-
16.10,0.634,50.58,1.99,L,5 1/2,51 3/4,16,-,11 3/4
16.30,0.642,51.21,2.02,L 1/4,5 3/4,-,-,-,-
16.41,0.646,51.55,2.03,L 1/2,5 7/8,-,-,-,-
16.51,0.650,51.87,2.04,M,6,52 3/4,16 1/2,12,12 3/4
16.71,0.658,52.50,2.07,M 1/2,6 1/4,-,-,-,-
16.92,0.666,53.16,2.09,N,6 1/2,54,17,13,14
17.13,0.674,53.82,2.12,N 1/2,6 3/4,-,-,-,-
17.35,0.683,54.51,2.15,O,7,55 1/4,17 1/4,14,15 1/4
17.45,0.687,54.82,2.16,O 1/2,7 1/4,-,-,-,-
17.75,0.699,55.76,2.20,P,7 1/2,56 1/2,17 3/4,15,16 1/2
17.97,0.707,56.45,2.22,P 1/2,7 3/4,-,-,-,-
18.19,0.716,57.15,2.25,Q,8,57 3/4,18,16,17 3/4
18.35,0.722,57.65,2.27,Q 1/2,8 1/4,-,-,-,-
18.53,0.729,58.21,2.29,Q 3/4,8 1/2,-,18 1/2,17,-
18.61,0.733,58.47,2.30,R,8 5/8,59,-,-,19
18.69,0.736,58.72,2.31,R 1/4,8 3/4,-,-,-,-
18.80,0.740,59.06,2.32,R 1/2,8 7/8,-,-,-,-
18.89,0.748,59.34,2.35,R 3/4,9,-,19,18,-
19.10,0.752,60.00,2.36,S,9 1/8,60 1/4,-,-,20 1/4
19.22,0.757,60.38,2.38,S 1/4,9 1/4,-,-,-,-
19.31,0.760,60.66,2.39,S 1/2,9 3/8,-,-,-,-
19.41,0.764,60.98,2.40,S 3/4,9 1/2,-,19 1/2,19,-
19.51,0.768,61.29,2.41,T,9 5/8,61 1/2,-,-,21 1/2
19.62,0.772,61.64,2.43,T 1/4,9 3/4,-,-,-,-
19.84,0.781,62.33,2.45,T 1/2,10,-,20,20,-
20.02,0.788,62.89,2.48,U,10 1/4,62 3/4,-,21,22 3/4
20.20,0.797,63.46,2.50,U 1/2,10 1/2,-,20 1/4,22,-
20.32,0.800,63.84,2.51,V,10 5/8,63,-,-,23 3/4
20.44,0.805,64.21,2.53,V 1/4,10 3/4,-,-,-,-
20.68,0.814,64.97,2.56,V 1/2,11,-,20 3/4,23,-
20.76,0.817,65.22,2.57,W,11 1/8,65,-,-,25
20.85,0.821,65.50,2.58,W 1/4,11 1/4,-,-,-,-
20.94,0.824,65.78,2.59,W 1/2,11 3/8,-,-,-,-
21.08,0.830,66.22,2.61,W 3/4,11 1/2,-,21,24,-
21.18,0.834,66.54,2.62,X,11 5/8,66 1/4,-,-,26 1/4
21.24,0.836,66.73,2.63,X 1/4,11 3/4,-,-,-,-
21.30,0.839,66.92,2.64,X 1/2,11 7/8,-,-,-,-
21.49,0.846,67.51,2.66,Y,12,67 1/2,21 1/4,25,27 1/2
21.69,0.854,68.14,2.68,Y 1/2,12 1/4,-,-,-,-
21.89,0.862,68.77,2.71,Z,12 1/2,68 3/4,21 3/4,26,28 3/4
22.10,0.870,69.43,2.73,Z +1/2,12 3/4,-,-,-,-
22.33,0.879,70.15,2.76,Z+1,13,-,22,27,-
22.60,0.890,71.00,2.80,Z+1.5,13.5,-,-,-,-
22.69,0.893,71.28,2.81,Z+2,-,-,-,-,-
22.92,0.902,72.00,2.83,Z+2.5,-,-,-,-,-
23.06,0.908,72.45,2.85,Z+3,-,-,-,-,-
23.24,0.915,73.01,2.87,Z+3.5,-,-,-,-,-
23.47,0.924,73.73,2.90,Z+4,-,-,-,-,-
23.55,0.927,73.98,2.91,Z+4.5,-,-,-,-,-
23.87,0.940,74.99,2.95,Z+5,-,-,-,-,-
24.27,0.956,76.25,3.00,Z+6,-,-,-,-,-
[/table]

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