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Wedding Rings Sizing Guide

Use this chart to convert your local standard sizes to your UK ring sizes for ordering. All of our wedding rings are listed in UK sizes including half sizes which is why we have made available an international ring size conversion chart. Choose your nearest UK size in the drop-down menu on the product listing page and specify your international ring size in the comments box at check out. If you are unsure of your size before ordering, then please consider trying our online wedding ring sizer service first.

Please make sure that you have your finger accurately sized by a professional jeweller. We recommend that you do not rely on plastic ring sizers or those that you can download from the internet. Some of our wider models (10mm plus) require measurements to be done using a wide ring sizer. Ask your jeweller to use the widest one possible and take the measure from the centre. With a 7mm width ring-sizer, we would suggest you need one size larger for a 10mm ring.

Our titanium wedding rings come with a comfort fit which means sizing is taken from the leading edge of the ring-sizer rather than the centre. However, this situation applies to all our non-comfort fit rings also. All our rings are made leading edge measurement. Your jeweller will be able to advise you on all these issues, but it's always a good idea to ask about anything you are not sure about,If you are unsure then email us - we don't mind. We can provide you with a professional ring sizer. A correct fitting after using our ring sizer should be only very slightly snug but comfortable. If the ring gauges were too loose for you, then the ring will be too loose also and vice versa.

If you already possess a ring that fits you, rather than using a print out from the internet, if you get time then visit a jeweller and get them to demonstrate a ring stick sizing for greater accuracy. The ring will slide freely down the stick next to the letter. The edge of the ring sits against the reading - this is known as a leading edge measurement. It is far more accurate than the printout.

U.S. Size
Diameter
in Inches
Diameter
in MM
Metric MM
Equivalent
British
French
German
Japanese
Swiss
0000
.390
9.91
-
-
-
-
-
-
00
.422
10.72
-
-
-
-
-
-
0
.454
11.53
-
-
-
-
-
-
1/2
.474
11.95
-
A
-
-
-
-
3/4
.482
12.18
-
A 1/2
-
-
-
-
1
.487
12.37
38.9
B
-
-
1
-
1 1/4
-
12.60
39.6
B 1/2
-
-
-
-
1 1/2
.503
12.78
40.2
C
-
-
-
-
1 3/4
-
13.00
40.8
C 1/2
-
-
-
-
2
.520
13.21
41.5
D
41 1/2
13 1/2
2
1 1/2
2 1/4
-
13.41
42.1
D 1/2
-
-
-
-
2 1/2
.536
13.61
42.7
E
42 3/4
13 3/4
3
2 3/4
2 3/4
-
13.83
43.4
E 1/2
-
-
-
-
3
.553
14.05
44.0
F
44
14
4
4
3 1/8
-
14.15
44.3
F 1/2
-
-
-
-
3 1/4
-
14.25
44.6
-
-
-
-
-
3 3/8
-
14.36
44.9
G
45 1/4
-
5
5 1/4
3 1/2
.569
14.45
45.2
-
-
14 1/2
-
-
3 5/8
-
14.56
45.6
G 1/2
-
-
6
-
3 3/4
-
14.65
45.9
H
46 1/2
-
-
6 1/2
4
.585
14.86
46.5
H 1/2
-
15
7
-
4 1/4
-
15.04
47.1
I
47 3/4
-
-
7 3/4
4 1/2
.601
15.27
47.8
I 1/2
-
15 1/4
8
-
4 5/8
-
15.40
48.1
J
49
15 1/2
-
9
4 3/4
-
15.53
48.4
-
-
-
-
-
5
.618
15.70
49.0
J 1/2
-
15 3/4
9
-
5 1/8
-
15.80
49.3
K
50
-
-
10
5 1/4
-
15.90
49.6
-
-
-
-
-
5 3/8
-
16.0
50.0
K 1/2
-
-
10
-
5 1/2
.634
16.10
50.3
L
51 3/4
16
-
11 3/4
5 3/4
-
16.30
50.9
-
-
-
-
-
5 7/8
-
16.41
51.3
L 1/2
-
-
-
-
6
.650
16.51
51.5
M
52 3/4
16 1/2
12
12 3/4
6 1/4
-
16.71
52.2
M 1/2
-
-
-
-
6 1/2
.666
16.92
52.8
N
54
17
13
14
6 3/4
-
17.13
53.4
N 1/2
-
-
-
-
7
.683
17.35
54.0
O
55 1/4
17 1/4
14
15 1/4
7 1/4
-
17.45
54.7
O 1/2
-
-
-
-
7 1/2
.699
17.75
55.3
P
56 1/2
17 3/4
15
16 1/2
7 3/4
-
17.97
55.9
P 1/2
-
-
-
-
8
.716
18.19
56.6
Q
57 3/4
18
16
17 3/4
8 1/4
-
18.35
57.2
Q 1/2
-
-
-
-
8 1/2
.732
18.53
57.8
-
-
18 1/2
17
-
8 5/8
-
18.61
58.4
R
59
-
-
19
8 3/4
-
18.69
58.4
-
-
-
-
-
8 7/8
-
18.80
59.0
R 1/2
-
-
-
-
9
.748
18.89
59.1
-
-
19
18
-
9 1/8
-
19.10
59.4
S
60 1/4
-
-
20 1/4
9 1/4
-
19.22
59.7
-
-
-
-
-
9 3/8
-
19.31
60.0
S 1/2
-
-
-
-
9 1/2
.764
19.41
60.3
-
-
19 1/2
19
-
9 5/8
-
19.51
60.6
T
61 1/2
-
-
21 1/2
9 3/4
-
19.62
60.9
-
-
-
-
-
10
.781
19.84
61.6
T 1/2
-
20
20
-
10 1/4
-
20.02
62.2
U
62 3/4
-
21
22 3/4
10 1/2
.797
20.20
62.8
U 1/2
-
20 1/4
22
-
10 5/8
-
20.32
63.1
V
63
-
-
23 3/4
10 3/4
-
20.44
63.5
-
-
-
-
-
11
.814
20.68
64.1
V 1/2
-
20 3/4
23
-
11 1/8
-
20.76
64.3
W
65
-
-
25
11 1/4
-
20.85
64.7
-
-
-
-
-
11 3/8
-
20.94
65.0
W 1/2
-
-
-
-
11 1/2
-
21.08
65.3
-
-
21
24
-
11 5/8
.830
21.18
65.7
X
66 1/4
-
-
26 1/4
11 3/4
-
21.24
66.0
-
-
-
-
-
11 7/8
-
21.30
66.3
X 1/2
-
-
-
-
12
.846
21.49
66.6
Y
67 1/2
21 1/4
25
27 1/2
12 1/4
-
21.69
67.2
Y 1/2
-
-
-
-
12 1/2
.862
21.89
67.9
Z
68 3/4
21 3/4
26
28 3/4
12 3/4
-
22.10
68.5
Z 1/2
-
-
-
-
13
.879
22.33
69.1
-
-
22
27
-
TOP