Ring Size Conversion Table

Measurement International Ring Size Table
Inches MM US / Canada UK / Australia / South Africa France Germany / Russia / Ukraine / Asia India / China / Japan / South America / Turkey / Israel Italy / Spain / Netherlands / Switzerland
--- --- 1/2 A --- --- --- ---
--- --- 1 B --- --- 1 ---
--- --- 1 1/2 C --- --- --- ---
--- --- 2 D 41 1/2 13 1/4 2 1 1/2
--- --- 2 1/4 D-1/2 42 1/8 13 1/2 --- ---
--- --- 2 1/2 E 42 3/4 13 3/4 3 2 3/4
--- --- 2 3/4 E-1/2 43 3/8 --- --- 3 3/8
1 3/4 44.5 3 F 44 14 4 4
--- --- 3 1/4 F-1/2 44 5/8 14 1/4 --- 4 5/8
1 25/32 45.2 3 1/2 G 45 1/4 14 1/2 5 5 1/4
--- --- 3 3/4 G-1/2 45 7/8 14 3/4 6 5 7/8
1 13/16 46.0 4 H 46 1/2 15 7 6 1/2
--- --- 4 1/4 H-1/2 47 1/8 --- --- 7 1/8
1 7/8 47.6 4 1/2 I 47 3/4 15 1/4 8 7 3/4
--- --- 4 3/4 J 48 3/8 15 1/2 --- 8 3/8
1 15/16 49.2 5 J-1/2 49 15 3/4 9 9
--- --- 5 1/4 K 49 5/8 16 --- 9 5/8
2 50.8 5 1/2 K-1/2 50 1/4 16 1/4 10 10 1/4
--- --- 5 3/4 L 50 7/8 --- 11 10 7/8
2 1/16 52.4 6 L-1/2 51 1/2 16 1/2 12 11 1/2
--- --- 6 1/4 M 52 1/8 16 3/4 --- 12 1/8
2 3/32 53.2 6 1/2 M-1/2 52 3/4 17 13 12 3/4
--- --- 6 3/4 N 53 3/8 --- --- 13 3/8
2 1/8 54.0 7 O 54 17 1/4 14 14
--- --- 7 1/4 O-1/2 54 5/8 17 1/2 --- 14 5/8
2 3/16 55.6 7 1/2 P 55 1/4 17 3/4 15 15 1/4
--- --- 7 3/4 P-1/2 55 7/8 18 --- 15 7/8
2 1/4 57.2 8 Q 56 1/2 --- 16 16 1/2
--- --- 8 1/4 Q-1/2 57 1/8 18 1/4 --- 17 1/8
2 5/32 57.82 8 1/2 R 57 3/4 18 1/2 17 17 3/4
--- --- 8 3/4 R-1/2 58 3/8 18 3/4 --- 18 3/8
2 5/16 58.7 9 S 59 19 18 19
--- --- 9 1/4 S-1/2 59 5/8 19 1/4 --- 19 5/8
2 3/8 60.3 9 1/2 --- 60 1/4 19 1/2 19 20 1/4
--- --- 9 3/4 T 60 7/8 --- --- 20 7/8
2 7/16 61.9 10 T-1/2 61 1/2 19 3/4 20 21 1/2
--- --- 10 1/4 U 62 1/8 20 21 22 1/8
2 1/2 63.5 10 1/2 U-1/2 62 3/4 --- 22 22 3/4
--- --- 10 3/4 V 63 3/8 20 1/2 --- 23 3/8
2 9/16 65.1 11 V-1/2 64 20 3/4 23 24
--- --- 11 1/4 W 64 5/8 --- --- 24 5/8
2 19/32 65.9 11 1/2 W-1/2 65 1/4 21 24 25 1/4
--- --- 11 3/4 X 65 7/8 21 1/4 --- 25 7/8
2 5/8 66.7 12 Y 66 1/2 21 1/2 25 26 1/2
--- --- 12 1/4 Y-1/2 67 1/8 --- --- 27 1/8
--- --- 12 1/2 Z 67 3/4 21 3/4 26 27 3/4
--- --- 12 3/4 Z-1/2 68 3/8 --- --- 28 3/8
--- --- 13 --- 69 22 27 29