This is perhaps the most commonly asked question while shopping for rings online. Hence this page! Irish Jeweller want you to be 100% sure that the Claddagh Ring or Celtic Ring you buy fits perfectly. The best way of doing this is to get your finger measured by your local jeweller. If that is not an option (and you have a ring already to compare with), You can use the following tool: Below is a chart of ring sizes to help our international customers figure out how sizes match up. Simply wrap a tape measure around your finger and note the diameter in inches and refer to the chart below and the country of your origin.
International Ring Size Chart |
| US & Canada Ring Size | Diameter in Inches | Great Britain | France | Germany | Japan | Switzerland |
| 000 | 0.390 | — | — | — | — | — |
| 00 | 0.422 | — | — | — | — | — |
| 0 | 0.454 | — | — | — | — | — |
| ½ | 0.462 | A | — | — | — | — |
| ¾ | 0.471 | A – ½ | — | — | — | — |
| 1 | 0.487 | B | — | — | 1 | — |
| 1 – ¼ | 0.495 | B – ½ | — | — | — | — |
| 1 – ½ | 0.503 | C | — | — | — | — |
| 1 – ¾ | 0.511 | C – ½ | — | — | — | — |
| 2 | 0.520 | D | 41 – ½ | 13 – ¼ | 2 | 1 – ½ |
| 2 – ¼ | 0.528 | D – ½ | 42 – 1/8 | 13 – ½ | — | — |
| 2 – ½ | 0.536 | E | 42 – ¾ | 13 – ¾ | 3 | 2 – ¾ |
| 2 – ¾ | 0.544 | E – ½ | 43 – 3/8 | — | — | 3 – 3/8 |
| 3 | 0.553 | F | 44 | 14 | 4 | 4 |
| 3 – ¼ | 0.561 | F – ½ | 44 – 5/8 | 14 – ¼ | — | 4 – 5/8 |
| 3 – ½ | 0.569 | G | 45 – ¼ | 14 – ½ | 5 | 5 – ¼ |
| 3 – ¾ | 0.577 | G – ½ | 45 – 7/8 | 14 – ¾ | 6 | 5 – 7/8 |
| 4 | 0.586 | H – ½ | 46 – ½ | 15 | 7 | 6 – ½ |
| 4 – ¼ | 0.594 | I | 47 – 1/8 | 15 – ¼ | — | 7 – 1/8 |
| 4 – ½ | 0.602 | I – ½ | 47 – ¾ | 15 – ½ | 8 | 7 – ¾ |
| 4 – ¾ | 0.610 | J | 48 – 3/8 | — | — | 8 – 3/8 |
| 5 | 0.619 | J – ½ | 49 | 15 – ¾ | 9 | 9 |
| 5 – ¼ | 0.627 | K | 49 – 5/8 | 16 | — | 9 – 5/8 |
| 5 – ½ | 0.635 | K – ½ | 50 – ¼ | 16 – 1/4 | 10 | 10 – ¼ |
| 5 – ¾ | 0.643 | L | 50 – 7/8 | — | 11 | 10 – 7/8 |
| 6 | 0.652 | L – ½ | 51 – ½ | 16 – ½ | 12 | 11 – ½ |
| 6 – ¼ | 0.660 | M | 52 – 1/8 | 16 – ¾ | — | 12 – 1/8 |
| 6 – ½ | 0.668 | M – ½ | 52 – ¾ | 17 | 13 | 12 – ¾ |
| 6 – ¾ | 0.676 | N | 53 – ¾ | — | — | 13 – 3/8 |
| 7 | 0.685 | O | 54 | 17 – ¼ | 14 | 14 |
| 7 – ¼ | 0.693 | O – ½ | 54 – 5/8 | 17 – ½ | — | 14 – 5/8 |
| 7 – ½ | 0.701 | P | 55 – ¼ | 17 – ¾ | 15 | 15 – ¼ |
| 7 – ¾ | 0.709 | P – ½ | 55 – 7/8 | — | — | 15 – 7/8 |
| 8 | 0.717 | Q | 56 – ½ | 18 | 16 | 16 – ½ |
| 8 – ¼ | 0.726 | Q – ½ | 57 – 1/8 | 18 – ¼ | — | 17 – 1/8 |
| 8 – ½ | 0.734 | R | 57 – ¾ | 18 – ½ | 17 | 17 – ¾ |
| 8 – ¾ | 0.742 | R – ½ | 58 – 3/8 | 18 – ¾ | — | 18 – 3/8 |
| 9 | 0.750 | S | 59 | 19 | 18 | 19 |
| 9 – ¼ | 0.759 | S – ½ | 59 – 5/8 | 19 – ¼ | — | 19 – 5/8 |
| 9 – ½ | 0.767 | — | 60 – ¼ | 19 – ½ | 19 | 20 – ¼ |
| 9 – ¾ | 0.775 | T | 60 – 7/8 | 19 – ¾ | — | 20 – 7/8 |
| 10 | 0.783 | T – ½ | 61 – ½ | 20 | 20 | 21 – ½ |
| 10 – ¼ | 0.792 | U | 62 – 1/8 | 20 – ¼ | 21 | 22 – 1/8 |
| 10 – ½ | 0.800 | U – ½ | 62 – ¾ | 20 – ½ | 22 | 22 – ¾ |
| 10 – ¾ | 0.808 | V | 63 – 3/8 | — | — | 23 – 3/8 |
| 11 | 0.816 | V – ½ | 64 | 20 – ¾ | 23 | 24 |
| 11 – ¼ | 0.825 | W | 64 – 5/8 | — | — | 24 – 5/8 |
| 11 – ½ | 0.833 | W – ½ | 65 – ¼ | 21 | 24 | 25 – ¼ |
| 11 – ¾ | 0.841 | X | 65 – 7/8 | — | — | 25 – 7/8 |
| 12 | 0.849 | Y | 66 – ½ | 21 – ¼ | 25 | 26 – ½ |
| 12 – ¼ | 0.858 | Y – ½ | 67 – 1/8 | 21 – ½ | — | 27 – 1/8 |
| 12 – ½ | 0.866 | Z | 67 – ¾ | 21 – ¾ | 26 | 27 – ¾ |
| 12 – ¾ | 0.874 | Z – ½ | 68 – 3/8 | — | — | 2/ – 3/8 |
| 13 | 0.882 | — | 69 | 22 | 27 | 29 |
What if I need my ring resized? In the unlikely event, that your ring doesn’t fit, we can resize it for you or replace it free of charge if it’s not been worn. Simply return the ring to us along with your order number and the size you want the ring changed to. See Terms & Conditions.
