International size and measurement guide
Choose only a size or length offered in the product selector. International size equivalents are approximate; the supplier’s UK size label is the ordering reference.
Rings: international size equivalents
French and European ring sizes correspond to the inner circumference in millimetres. Measure your finger several times at a normal temperature. Wider rings may fit differently. For an intermediate size not shown here, including Y or Z2, have your measurement checked by a professional.
| FR / EU · mm | US / CA | UK | JP |
|---|---|---|---|
| 44 | 3 | F½ | 4 |
| 45 | 3¼ | G | 5 |
| 46 | 3¾ | H | 6 |
| 47 | 4 | H½ | 7 |
| 48 | 4½ | I½ | 8 |
| 49 | 4¾ | J½ | 9 |
| 50 | 5¼ | K | 10 |
| 51 | 5¾ | L | 11 |
| 52 | 6 | L½ | 12 |
| 53 | 6¼ | M½ | 13 |
| 54 | 6¾ | N½ | 14 |
| 55 | 7¼ | O | 15 |
| 56 | 7½ | P | 16 |
| 57 | 8 | P½ | 17 |
| 58 | 8¼ | Q½ | 18 |
| 59 | 8¾ | R | 19 |
| 60 | 9 | S | 20 |
| 61 | 9½ | S½ | 21 |
| 62 | 10 | T½ | 22 |
| 63 | 10¼ | U½ | 23 |
| 64 | 10¾ | V | 24 |
| 65 | 11 | W | 25 |
| 66 | 11½ | W½ | 26 |
| 67 | 11¾ | X½ | 27 |
| 68 | 12¼ | Z | 28 |
| 69 | 12½ | Z½ | 29 |
Bracelets, bangles and necklaces
1 inch equals exactly 2.54 cm. This unit conversion does not establish the actual length of an item with incomplete or conflicting supplier measurements. Measure your wrist or a well-fitting piece of jewellery; ask for a bangle’s internal diameter. Any extension or adjustment is stated on the product page.
| Inches / pouces | cm |
|---|---|
| 6″ | 15.24 |
| 6.5″ | 16.51 |
| 7″ | 17.78 |
| 7.5″ | 19.05 |
| 8″ | 20.32 |
| 8.5″ | 21.59 |
| 9″ | 22.86 |
| 10″ | 25.40 |
| 14″ | 35.56 |
| 16″ | 40.64 |
| 17″ | 43.18 |
| 18″ | 45.72 |
| 20″ | 50.80 |
| 22″ | 55.88 |
| 24″ | 60.96 |
| 26″ | 66.04 |
| 28″ | 71.12 |
| 30″ | 76.20 |
Earrings and pendants
10 mm equals 1 cm. Check the height, width, depth and fastening listed on the product page. A chain shown for styling is included only when the product description explicitly says so.
If a measurement has not been confirmed, contact our customer service before ordering. Worn photographs are illustrative and do not replace measurements.
Ring-size reference: international standard size chart. Measuring methods and fit may vary between makers.

