Ring size comparison chart for American, British and European finger sizes
LionSorbet is a specialist provider of Jewellery models for manufacture. We use state of the art 3D Cad modelling techniques to build sophisticated, detailed and stunning Jewellery for Designers and Manufacturers all over the world. we have found over the years that having a finger size guide is an essential tool for creating perfect models.
With bespoke designs the finger size is very important and is the basis for all models. As we use this this guide on a daily basis we felt it necessary to share this information on our website as resource for any one wishing to compare finger sizes across the globe or just use as a guide when required.
| American | British | European | Inside Diameter (mm) |
|---|---|---|---|
| A | 12.065 | ||
| 38 | 12.096 | ||
| A½ | 12.263 | ||
| 1 | 12.344 | ||
| 39 | 12.344 | ||
| B | 12.459 | ||
| B½ | 12.657 | ||
| 40 | 12.733 | ||
| 1½ | 12.751 | ||
| C | 12.852 | ||
| C½ | 41 | 13.051 | |
| 2 | 13.157 | ||
| D | 13.246 | ||
| 42 | 13.369 | ||
| D½ | 13.444 | ||
| 2½ | 13.564 | ||
| E | 13.640 | ||
| 43 | 13.687 | ||
| E½ | 13.838 | ||
| 3 | 13.970 | ||
| 44 | 14.006 | ||
| F | 14.034 | ||
| F½ | 14.232 | ||
| 45 | 14.324 | ||
| 3½ | 14.376 | ||
| G | 14.427 | ||
| G½ | 14.625 | ||
| 46 | 14.642 | ||
| 4 | 14.783 | ||
| H | 14.821 | ||
| 47 | 14.961 | ||
| H½ | 15.019 | ||
| 4½ | 15.189 | ||
| I | 15.215 | ||
| 48 | 15.279 | ||
| I½ | 15.413 | ||
| 5 | 49 | 15.597 | |
| J | 15.608 | ||
| J½ | 15.806 | ||
| 50 | 15.916 | ||
| 5½ | K | 16.002 | |
| K½ | 16.200 | ||
| 5½ | K | 16.002 | |
| K½ | 16.200 | ||
| 51 | 16.234 | ||
| 6 | L | 16.396 | |
| 52 | 16.552 | ||
| L½ | 16.594 | ||
| M | 16.789 | ||
| 6½ | 16.815 | ||
| 53 | 16.871 | ||
| M½ | 16.988 | ||
| N | 17.183 | ||
| 54 | 17.189 | ||
| 7 | 17.221 | ||
| N½ | 17.381 | ||
| 55 | 17.507 | ||
| O | 17.577 | ||
| 7½ | 17.628 | ||
| O½ | 17.775 | ||
| 56 | 17.826 | ||
| P | 17.971 | ||
| 8 | 18.034 | ||
| 57 | 18.144 | ||
| P½ | 18.169 | ||
| Q | 18.364 | ||
| 8½ | 18.453 | ||
| 58 | 18.462 | ||
| Q½ | 18.562 | ||
| R | 18.758 | ||
| 59 | 18.780 | ||
| 9 | 18.872 | ||
| R½ | 18.956 | ||
| 60 | 19.098 | ||
| S | 19.152 | ||
| 60 | 19.098 | ||
| 9½ | 19.279 | ||
| S½ | 19.350 | ||
| 61 | 19.416 | ||
| T | 19.545 | ||
| T½ | 19.741 | ||
| 10 | 19.761 | ||
| U | 19.939 | ||
| 63 | 20.054 | ||
| U½ | 20.137 | ||
| 10½ | 20.168 | ||
| V | 20.333 | ||
| 64 | 20.372 | ||
| V½ | 20.531 | ||
| 11 | 20.599 | ||
| 65 | 20.690 | ||
| W | 20.726 | ||
| W½ | 20.925 | ||
| 11½ | 66 | 21.008 | |
| X | 21.120 | ||
| X½ | 21.318 | ||
| 67 | 21.326 | ||
| 12 | 21.412 | ||
| Y | 21.514 | ||
| 68 | 21.645 | ||
| Y½ | 21.712 | ||
| 12½ | 21.819 | ||
| Z | 21.908 | ||
| 69 | 21.963 | ||
| Z½ | 22.106 | ||
| 13 | 22.252 |
If you found this page useful or want to enquire about any of our services for the Jewellery Industry please email us. We’d love to hear from you.
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