Ring Sizes Around UK Q
| US | UK | ISO / EU | JP / KR | Diameter (mm) | Circumference (mm) |
| 7 | N | 54 | 14 | 17.3 | 54.4 |
| 7.5 | O | 56 | 15 | 17.7 | 55.7 |
| 8 | P | 57 | 16 | 18.1 | 57 |
| 8.5 | Q | 58 | 18 | 18.6 | 58.3 |
| 9 | R | 60 | 19 | 18.9 | 59.5 |
| 9.5 | S | 61 | 20 | 19.4 | 60.8 |
| 10 | T | 62 | 21 | 19.8 | 62.1 |
Frequently Asked Questions
Does UK Q round up or down in US?
Clear the knuckle and size for the end of the day; a mid-scale ring worn on a swelling finger is the hardest to remove when it runs tight.
See a number that looks off? Report an error on this page.