Ring Size Guide
Method 1
- Select a ring which you own that properly fits the intended finger
- Measure the inside diameter of the ring
- If the ring falls between two sizes then we suggest buying the larger size
Method 2
- With a piece of string measure the around intended thumb or finger
- Match this with the circumference in the table below
- We recommend selecting the large size if it falls between two sizes
✅ Risk-free purchase with our returns guarantee 14 days of purchase (UK) and 28 days (overseas).
Women
| Tranquillity / EU Size |
UK Size |
US Size |
Circumference (mm) |
Diameter (mm) |
| 50 |
J |
5 |
49.0mm |
15.6mm |
| 52 |
L |
6 |
51.6mm |
16.4mm |
| 54 |
N |
7 |
54.0mm |
17.2mm |
| 56 |
O |
7.5 |
55.3mm |
17.6mm |
| 58 |
Q |
8.5 |
57.8mm |
18.4mm |
| 60 |
R |
9 |
59.1 mm |
18.8mm |
| 62 |
T |
10 |
61.8mm |
19.6 mm |
| 64 |
V |
11 |
64.1mm |
20.4mm |
Men
| 56 |
Q |
8 |
57.8 |
18.4 |
| 58 |
S |
9 |
59.5 |
19.15 |
| 60 |
U |
10 |
62.5 |
19.81 |
| 62 |
W |
11 |
65 |
20.61 |
| 64 |
Y |
12 |
67.5 |
21.4 |
| 66 |
Z+1 |
13 |
70.5 |
22.1 |
