International Ring Size Chart
We use US/Canadian size information for our men's rings. Feel free to use this sizing chart to ensure you have the perfect fit. If you are unsure of your ring size, be sure to check out our easy-to-use guide that explains how to measure your finger. It is very easy, and takes only a few minutes - check out our guide here.
Circumference (mm)
Europe / ISO |
Diameter (mm) |
USA / Canada |
UK / Australia |
Asia |
Switzerland |
| 44.2 |
14.1 |
3 |
F |
4 |
4 |
| 44.8 |
14.3 |
|
F-1/2 |
5 |
5-1/4 |
| 45.5 |
14.5 |
3-1/2 |
G |
|
|
| 46.1 |
14.7 |
|
G-1/2 |
6 |
6-1/2 |
| 46.8 |
14.9 |
4 |
H |
7 |
|
| 47.4 |
15.1 |
|
H-1/2 |
|
7-3/4 |
| 48.0 |
15.3 |
4-1/2 |
I |
8 |
|
| 48.7 |
15.5 |
|
J |
|
9 |
| 49.3 |
15.7 |
5 |
J-1/2 |
9 |
|
| 50.0 |
15.9 |
|
K |
|
10 |
| 50.6 |
16.1 |
5-1/2 |
K-1/2 |
10 |
|
| 51.2 |
16.3 |
|
L |
|
11-3/4 |
| 51.9 |
16.5 |
6 |
L-1/2 |
11 |
12-3/4 |
| 52.5 |
16.7 |
|
M |
12 |
|
| 53.1 |
16.9 |
6-1/2 |
M-1/2 |
13 |
14 |
| 53.8 |
17.1 |
|
N |
|
|
| 54.4 |
17.3 |
7 |
N-1/2 |
14 |
15-1/4 |
| 55.1 |
17.5 |
|
O |
|
|
| 55.7 |
17.7 |
7-1/2 |
O-1/2 |
15 |
16-1/2 |
| 56.3 |
17.9 |
|
P |
|
|
| 57.0 |
18.1 |
8 |
P-1/2 |
16 |
17-3/4 |
| 57.6 |
18.3 |
|
Q |
|
|
| 58.3 |
18.5 |
8-1/2 |
Q-1/2 |
17 |
|
| 58.9 |
18.8 |
|
R |
|
19 |
| 59.5 |
19.0 |
9 |
R-1/2 |
18 |
|
| 60.2 |
19.2 |
|
S |
|
20-1/4 |
| 60.8 |
19.4 |
9-1/2 |
S-1/2 |
19 |
|
| 61.4 |
19.6 |
|
T |
|
21-1/2 |
| 62.1 |
19.8 |
10 |
T-1/2 |
20 |
|
| 62.7 |
20.0 |
|
U |
21 |
|
| 63.4 |
20.2 |
10-1/2 |
U-1/2 |
22 |
22-3/4 |
| 64.0 |
20.4 |
|
V |
|
|
| 64.6 |
20.6 |
11 |
V-1/2 |
23 |
|
| 65.3 |
20.8 |
|
W |
|
25 |
| 65.9 |
21.0 |
11-1/2 |
W-1/2 |
24 |
|
| 66.6 |
21.2 |
|
X |
|
|
| 67.2 |
21.4 |
12 |
X-1/2 |
25 |
27-1/2 |
| 67.8 |
21.6 |
|
Y |
|
|
| 68.5 |
21.8 |
12-1/2 |
Z |
26 |
28-3/4 |
| 69.1 |
22.0 |
|
Z-1/2 |
|
|
| 69.7 |
22.2 |
13 |
|
27 |
|
| 70.4 |
22.4 |
|
Z + 1 |
|
|
| 71.0 |
22.6 |
13-1/2 |
|
|
|
|
|
