The size of a ring for finger can be determined after the circumference of the finger has been measured.
Method: Measure the circumference of finger in mm using a piece of paper or tape.
diameter of ring in mm =
= (circumference of finger in mm) / π
|
Diameter in mm |
US Size |
British |
French |
German |
Japanese |
Swiss |
|
9.91 |
0000 |
|
|
|
|
|
|
10.72 |
00 |
|
|
|
|
|
|
11.53 |
0 |
|
|
|
|
|
|
11.95 |
1/2 |
A |
|
|
|
|
|
12.18 |
3/4 |
A 1/2 |
|
|
|
|
|
12.37 |
1 |
B |
|
|
1 |
|
|
12.60 |
1 1/4 |
B 1/2 |
|
|
|
|
|
12.78 |
1 1/2 |
C |
|
|
|
|
|
13.00 |
1 3/4 |
C 1/2 |
|
|
|
|
|
13.21 |
2 |
D |
41 1/2 |
13 1/2 |
2 |
1 1/2 |
|
13.41 |
2 1/4 |
D 1/2 |
|
|
|
|
|
13.61 |
2 1/2 |
E |
42 3/4 |
13 3/4 |
3 |
2 3/4 |
|
13.83 |
2 3/4 |
E 1/2 |
|
|
|
|
|
14.05 |
3 |
F |
44 |
14 |
4 |
4 |
|
14.15 |
3 1/8 |
F 1/2 |
|
|
|
|
|
14.25 |
3 1/4 |
F 1/2 - G |
|
|
|
|
|
14.36 |
3 3/8 |
G |
45 1/4 |
|
5 |
5 1/4 |
|
14.45 |
3 1/2 |
G - G 1/2 |
|
14 1/2 |
|
|
|
14.56 |
3 5/8 |
G 1/2 |
|
|
6 |
|
|
14.65 |
3 3/4 |
H |
Info |
