All sizes on this site are US standard.
Shopping from Canada? That's your scale too — order as-is. In the UK, Australia, or New Zealand, find your match below.
Ring size conversion
| US / CA |
UK / AU / NZ |
| US 5 |
J½ |
| US 6 |
L½ |
| US 7 |
N½ |
| US 8 |
P½ |
| US 9 |
R½ |
| US 10 |
T½ |
Between sizes? Go up. A little room stays comfortable all day; too snug never loosens up.
Find your size at home
-
With a ring that fits: measure the inside of the ring at its widest point, in mm — that's the diameter column.
-
Without one: wrap a strip of paper snugly around the base of your finger, mark where it overlaps, and measure to the mark in mm — that's the circumference column.
 Diameter
(mm) |
 Circumference
(mm) |
Ring size |
| 15.7 |
49.3 |
US 5 |
| 16.5 |
51.9 |
US 6 |
| 17.3 |
54.4 |
US 7 |
| 18.1 |
56.9 |
US 8 |
| 19.0 |
59.7 |
US 9 |
| 19.8 |
62.2 |
US 10 |
Fingers run slightly larger at the end of the day and in warm weather — that's the best time to measure.
Selected natural stones
50,000+ customers
