The acredo Ring Size Chart
Our conversion table saves you converting the inner diameter to inner circumference.
You can read the values directly.
Ring size in Germany | Inner diameter | Ring size USA/Canada | Ring size Great Britain | Ring size France | Ring size Japan |
| 40 | 12,7 | 1.4 (1) | C | 0,0 | 0,2 |
| 41 | 13,0 | 1.8 (1-) | C 1/2 | 1,0 | 1,1 |
| 42 | 13,4 | 2.2 (2) | D 1/2 | 2,0 | 2,1 |
| 43 | 13,7 | 2.6 (2-) | E 1/2 | 3,0 | 3,1 |
| 44 | 14,0 | 3.0 (2-) | F | 4,0 | 4,0 |
| 45 | 14,3 | 3.4 (3) | G | 5,0 | 5,0 |
| 46 | 14,6 | 3.7 (3-) | G 1/2 | 6,0 | 5,9 |
| 47 | 15,0 | 4.1 (4) | H 1/2 | 7,0 | 6,9 |
| 48 | 15,3 | 4.5 (4-) | I 1/2 | 8,0 | 7,8 |
| 49 | 15,6 | 4.9 (4-) | J | 9,0 | 8,8 |
| 50 | 15,9 | 5.3 (5) | K | 10 | 9,7 |
| 51 | 16,2 | 5.7 (5-) | K 1/2 | 11 | 10,7 |
| 52 | 16,6 | 6.1 (6) | L 1/2 | 12 | 11,6 |
| 53 | 16,9 | 6.4 (6) | M 1/2 | 13 | 12,6 |
| 54 | 17,2 | 6.8 (6-) | N | 14 | 13,6 |
| 55 | 17,5 | 7.2 (7) | O | 15 | 14,5 |
| 56 | 17,8 | 7.6 (7-) | P | 16 | 15,5 |
| 57 | 18,1 | 8.0 (7-) | P 1/2 | 17 | 16,4 |
| 58 | 18,5 | 8.4 (8) | Q 1/2 | 18 | 17,4 |
| 59 | 18,8 | 8.7 (8-) | R | 19 | 18,3 |
| 60 | 19,1 | 9.1 (9) | S | 20 | 19,3 |
| 61 | 19,4 | 9.5 (9-) | T | 21 | 20,2 |
| 62 | 19,7 | 9.9 (9-) | T 1/2 | 22 | 21,2 |
| 63 | 20,1 | 10.3 (10) | U 1/2 | 23 | 22,2 |
| 64 | 20,4 | 10.7 (10-) | V | 24 | 23,1 |
| 65 | 20,7 | 11.0 (11) | W | 25 | 24,1 |
| 66 | 21,0 | 11.4 (11) | X | 26 | 25,0 |
| 67 | 21,3 | 11.8 (11-) | X 1/2 | 27 | 26,0 |
| 68 | 21,6 | 12.2 (12) | Y 1/2 | 28 | 26,9 |
| 69 | 22,0 | 12.6 (12-) | Z 1/2 | 29 | 27,9 |
| 70 | 22,3 | 13.0 (12-) | Z +1 | 30 | 28,8 |
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