German ring sizes correspond to the inside circumference in millimetres. Measure a well fitting ring for an initial guide, and try the fit before buying.
Measure an existing ring
On a ring that fits well, measure the inner diameter with a ruler and multiply it by 3.14, that gives the inner circumference in millimetres (a 17.2 mm diameter ≈ 54 mm circumference). In German-speaking countries this circumference is also the ring size.
Measure your finger
Wrap a narrow strip of paper or a thread around your finger, mark where it overlaps and measure the length in millimetres. This circumference in millimetres is the basis for your ring size.
For an accurate result
Measure more than once with your hand at a normal temperature. The ring should pass over the knuckle and then sit securely. For wide rings or when between sizes, trying the ring is more useful than adding a fixed size.
Ring size chart
Read the inner circumference in mm, this is also the German/EU size; the Turkish size (TR) is the circumference minus 40. Typical women’s sizes are 50–54 (often 54), men’s 58–64 (often 62).
| Circumf. (mm) = size | Turkey | Inner ⌀ (mm) | US (approx.) | UK (approx.) |
|---|---|---|---|---|
| 44 | 4 | 14,0 | 3 | F½ |
| 45 | 5 | 14,3 | 3½ | G |
| 46 | 6 | 14,6 | 3¾ | G½ |
| 47 | 7 | 15,0 | 4¼ | H½ |
| 48 | 8 | 15,3 | 4½ | I½ |
| 49 | 9 | 15,6 | 5 | J |
| 50 | 10 | 15,9 | 5¼ | K |
| 51 | 11 | 16,2 | 5¾ | K½ |
| 52 | 12 | 16,5 | 6 | L½ |
| 53 | 13 | 16,8 | 6½ | M½ |
| 54 | 14 | 17,2 | 6¾ | N |
| 55 | 15 | 17,5 | 7¼ | O |
| 56 | 16 | 17,8 | 7½ | P |
| 57 | 17 | 18,1 | 8 | P½ |
| 58 | 18 | 18,4 | 8½ | Q½ |
| 59 | 19 | 18,8 | 8¾ | R |
| 60 | 20 | 19,1 | 9¼ | S |
| 61 | 21 | 19,4 | 9½ | T |
| 62 | 22 | 19,7 | 10 | T½ |
| 63 | 23 | 20,0 | 10½ | U½ |
| 64 | 24 | 20,3 | 10¾ | V |
| 65 | 25 | 20,6 | 11¼ | W |
| 66 | 26 | 21,0 | 11¾ | X |
| 67 | 27 | 21,3 | 12¼ | Y |
| 68 | 28 | 21,6 | 12½ | Y½ |
Inner diameter = circumference ÷ π; Turkish size (TR) = circumference − 40. US and UK sizes are approximate and may vary slightly by manufacturer; if unsure, we measure precisely in store.
Most reliable in store
We can measure your ring size in the shop. Whether an existing ring can be resized depends on its construction and stones, among other things. Bring it in so we can check.