ring sizes
How do I know my ring size?
Step 1
Wrap a piece of string tightly around your finger.
Step 2
Mark the point where the two ends meet.
Step 3
Measure the string against a ruler to get the circumference of your finger.
Step 4
Look up your ring size using the circ column in the rings size conversion chart .
Watch the 'How do I know my ring size?' video
VIDEO
Things to note
We always recommend you have a local jeweller measure your ring size. To make sure you have a perfect fit.
Please double check your ring size with our ring size guide.
Please add a quarter to a half size on all rings wider than 0.47inch/1.2cm
All our rings can always be re sized.
Ring size FAQ's
How do I know my ring size?
Click , to check your ring size with our ring size guide.
How do I convert my ring size?
Click , to convert your ring size with ring size conversion chart.
Are ring sizes universal or standard?
Yes ring sizes are universal and standard. Although, there are different ring size conversion depending on what country you are in. Ring sizes are normally measured with numbers in the United States and Canada. And are normally measured with letters in the United Kingdom and Australia. Please note that other countries may have different conversions. But the most consistent way to check your size in either the inside diameter or inside circumference.
Are ring sizes unisex?
Yes ring sizes are unisex. If your ring size is size 9, then your ring size is 9 whether you are male of female. There is not a male or female size for rings.
What is an average ring size?
We have found that the average ring size for men is size 10 and the average ring size for women is size 7.
Are ring sizes measured in cm or inches?
Ring sizes can be measured in either cm or inches. Whatever your measurements are in you can alwasy convert them through our ring size conversion chart .
Can ring sizes be increased, decreased sized up, sized down or adjusted?
Yes all our rings can always be re sized. We can always make them bigger or smaller or change the measurements.
Can my ring size change?
Yes your ring size can change slightly. We've found that temperatures, winter or summer conditions can change your ring size. Colder conditions can make your ring size smaller and warmer conditions can make your ring size larger.
Ring size conversion chart
US SIZE
UK SIZE
INSIDE DIA IN
INSIDE DIA MM
INSIDE CIRC IN
INSIDE CIRC MM
1/2
A
0.474
12.0
1.488
37.8
3/4
A 1/2
0.482
12.2
1.513
38.4
1
B
0.490
12.4
1.539
39.1
1 1/4
B 1/2
0.498
12.6
1.564
39.7
1 1/2
C
0.506
12.9
1.589
40.4
1 3/4
C 1/2
0.514
13.1
1.614
41.0
2
D
0.522
13.3
1.639
41.6
2 1/4
D 1/2
0.530
13.5
1.664
42.3
2 1/2
E
0.538
13.7
1.689
42.9
2 3/4
E 1/2
0.546
13.9
1.714
43.5
3
F
0.554
14.1
1.740
44.2
3 1/4
F 1/2
0.562
14.3
1.765
44.8
3 1/2
G
0.570
14.5
1.790
45.5
3 3/4
G 1/2
0.578
14.7
1.815
46.1
4
H
0.586
14.9
1.840
46.7
4 1/4
H 1/2
0.594
15.1
1.865
47.4
4 1/2
I
0.602
15.3
1.890
48.0
4 3/4
J
0.610
15.5
1.915
48.7
5
J 1/2
0.618
15.7
1.941
49.3
5 1/4
K
0.626
15.9
1.966
49.9
5 1/2
K 1/2
0.634
16.1
1.991
50.6
5 3/4
L
0.642
16.3
2.016
51.2
6
L 1/2
0.650
16.5
2.041
51.8
6 1/4
M
0.658
16.7
2.066
52.5
6 1/2
M 1/2
0.666
16.9
2.091
53.1
6 3/4
N
0.674
17.1
2.116
53.8
7
N 1/2
0.682
17.3
2.141
54.4
7 1/4
O
0.690
17.5
2.167
55.0
7 1/2
O 1/2
0.698
17.7
2.192
55.7
7 3/4
P
0.706
17.9
2.217
56.3
8
P 1/2
0.714
18.1
2.242
56.9
8 1/4
Q
0.722
18.3
2.267
57.6
8 1/2
Q 1/2
0.730
18.5
2.292
58.2
8 3/4
R
0.738
18.7
2.317
58.9
9
R 1/2
0.746
18.9
2.342
59.5
9 1/4
S
0.754
19.2
2.368
60.1
9 1/2
S 1/2
0.762
19.4
2.393
60.8
9 3/4
T
0.770
19.6
2.418
61.4
10
T 1/2
0.778
19.8
2.443
62.1
10 1/4
U
0.786
20.0
2.468
62.7
10 1/2
U 1/2
0.794
20.2
2.493
63.3
10 3/4
V
0.802
20.4
2.518
64.0
11
V 1/2
0.810
20.6
2.543
64.6
11 1/4
W
0.818
20.8
2.569
65.2
11 1/2
W 1/2
0.826
21.0
2.594
65.9
11 3/4
X
0.834
21.2
2.619
66.5
12
X 1/2
0.842
21.4
2.644
67.2
12 1/4
Y
0.850
21.6
2.669
67.8
12 1/2
Z
0.858
21.8
2.694
68.4
12 3/4
Z 1/2
0.866
22.0
2.719
69.1
13
0.874
22.2
2.744
69.7
13 1/4
Z1
0.882
22.4
2.769
70.3
13 1/2
0.890
22.6
2.795
71.0
13 3/4
Z2
0.898
22.8
2.820
71.6
14
Z3
0.906
23.0
2.845
72.3
14 1/4
0.914
23.2
2.870
72.9
14 1/2
Z4
0.922
23.4
2.895
73.5
14 3/4
0.930
23.6
2.920
74.2
15
0.938
23.8
2.945
74.8
15 1/4
0.946
24.0
2.970
75.4
15 1/2
0.954
24.2
2.996
76.1
15 3/4
0.962
24.4
3.021
76.7
16
0.970
24.6
3.046
77.4
16 1/4
0.978
24.8
3.071
78.0
16 1/2
0.986
25.0
3.096
78.6
16 3/4
0.994
25.2
3.121
79.3
17
1.002
25.5
3.146
79.9
17 1/4
1.010
25.7
3.171
80.6
17 1/2
1.018
25.9
3.197
81.2
17 3/4
1.026
26.1
3.222
81.8
18
1.034
26.3
3.247
82.5
18 1/4
1.042
26.5
3.272
83.1
18 1/2
1.050
26.7
3.297
83.7
18 3/4
1.058
26.9
3.322
84.4
19
1.066
27.1
3.347
85.0
19 1/4
1.074
27.3
3.372
85.7
19 1/2
1.082
27.5
3.397
86.3
19 3/4
1.090
27.7
3.423
86.9
20
1.098
27.9
3.448
87.6
20 1/4
1.106
28.1
3.473
88.2
20 1/2
1.114
28.3
3.498
88.8
20 3/4
1.122
28.5
3.523
89.5
21
1.130
28.7
3.548
90.1
21 1/4
1.138
28.9
3.573
90.8
21 1/2
1.146
29.1
3.598
91.4
21 3/4
1.154
29.3
3.624
92.0
22
1.162
29.5
3.649
92.7
22 1/4
1.170
29.7
3.674
93.3
22 1/2
1.178
29.9
3.699
94.0
22 3/4
1.186
30.1
3.724
94.6
23
1.194
30.3
3.749
95.2
23 1/4
1.202
30.5
3.774
95.9
23 1/2
1.210
30.7
3.799
96.5
23 3/4
1.218
30.9
3.825
97.1
24
1.226
31.1
3.850
97.8
24 1/4
1.234
31.3
3.875
98.4
24 1/2
1.242
31.5
3.900
99.1
24 3/4
1.250
31.8
3.925
99.7
25
1.258
32.0
3.950
100.3
25 1/4
1.266
32.2
3.975
101.0
25 1/2
1.274
32.4
4.000
101.6
25 3/4
1.282
32.6
4.025
102.2
26
1.290
32.8
4.051
102.9