Ring Size Conversion Chart
Diameter(mm) | US & Canada | Europe | UK & Australia | Japan & Singapore |
14.1 | 3 | 44 | F 1/2 | 4 |
14.3 | 45 | G | 5 | |
14.5 | 3.5 | G 1/2 | ||
14.7 | 46 | H | 6 | |
14.9 | 4 | 47 | H 1/2 | 7 |
15.1 | I | |||
15.3 | 4.5 | 48 | I 1/2 | 8 |
15.5 | J | |||
15.7 | 5 | 49 | J 1/2 | 9 |
15.9 | 50 | K | ||
16.1 | 5.5 | K 1/2 | 10 | |
16.3 | 51 | L | ||
16.5 | 6 | 52 | L 1/2 | 11 |
16.7 | M | 12 | ||
16.9 | 6.5 | 53 | M 1/2 | 13 |
17.1 | N | |||
17.3 | 7 | 54 | N 1/2 | 14 |
17.5 | 55 | O | ||
17.7 | 7.5 | O 1/2 | 15 | |
17.9 | 56 | P | ||
18.1 | 8 | 57 | P 1/2 | 16 |
18.3 | Q | |||
18.5 | 8.5 | 58 | Q 1/2 | 17 |
18.8 | 59 | R | ||
19.0 | 9 | R 1/2 | 18 | |
19.2 | 60 | S | ||
19.4 | 9.5 | 61 | S 1/2 | 19 |
19.6 | T | |||
19.8 | 10 | 62 | T 1/2 | 20 |
20.0 | U | 21 | ||
20.2 | 10.5 | 63 | U 1/2 | 22 |
20.4 | 64 | V | ||
20.6 | 11 | V 1/2 | 23 | |
20.8 | 65 | W | ||
21.0 | 11.5 | 66 | W 1/2 | 24 |
21.2 | X | |||
21.4 | 12 | 67 | X 1/2 | 25 |
21.6 | Y | |||
21.8 | 12.5 | 68 | Z | 26 |
22.0 | 69 | Z 1/2 | ||
22.2 | 13 | 70 | 27 | |
22.4 | Z+1 | |||
22.6 | 13.5 | Z+2 |