How to Measure Your Ring Size

To determine your size, we strongly advise that you measure the size of your finger rather than the size of your ring.

1. Using a length of string or ribbon, wrap it around the base of your finger. To ensure the ring fits comfortably, we suggest measuring your knuckle as well. We recommend selecting a size that will slide on and off your finger easily.

2. With a pen, mark the point on the string where the ends meet.

3. Measure the string in millimetres with a ruler.

4. Choose the closest measurement to the chart below to identify your ring size.

Finger
Circumference
In mm		 Ring Size
Europe USA UK Japan
44 44 3 F ½ 4
45 45 3 ¼ G 5
46 46 3 ¾ H 6
47 47 4 H ½ 7
48 48 4 ½ I ½ 8
49 49 4 ¾ J ½ 9
50 50 5 ¼ K 10
51 51 5 ¾ L 11
52 52 6 L ½ 12
53 53 6 ¼ M ½ 13
54 54 6 ¾ N ½ 14
55 55 7 ¼ O 15
56 56 7 ½ P 16
57 57 8 P ½ 17
58 58 8 ¼ Q ½ 18
59 59 8 ¾ R 19
60 60 9 S 20
61 61 9 ½ S ½ 21
62 62 10 T ½ 22
63 63 10 ¼ U ½ 23
64 64 10 ¾ V 24
65 65 11 W 25
66 66 11 ½ W ½ 26
67 67 11 ¾ X ½ 27
68 68 12 ¼ Z 28
69 69 12 ½ Z ½ 29
70 70 13 30
71 71 13 ¼ 31

Tips

  • The string or ribbon must fit snugly to produce an accurate size reading.
  • Finger size can change depending on the time of day and weather; for the most accurate measurement, measure your finger at different times of the day, and on different days to provide comparisons.
  • Avoid measuring your fingers when they are cold or wet, as they will be at their smallest.
40
12.73mm
41
13.05mm
42
13.37mm
43
13.69mm
44
14.01mm
45
14.32mm
46
14.64mm
47
14.96mm
48
15.28mm
49
15.50mm
50
15.92mm
51
16.23mm
52
16.55mm
53
16.87mm
54
17.19mm
55
17.51mm
56
17.83mm
57
18.14mm
58
18.46mm
59
18.78mm
60
19.10mm
61
19.42mm
62
19.74mm
63
20.05mm
64
20.37mm
65
20.69mm
66
21.01mm
67
21.33mm
68
21.65mm
69
21.96mm
70
22.28mm
71
22.60mm
72
22.92mm
73
23.24mm
74
23.55mm
75
23.87mm
Download Ring Sizing Guide

Before printing this guide, please follow the instructions below:

To print our guide ensure that your printer settings do not have scaling enabled and that it is set
to A4 (21.0 x 29.7cm) paper.

Once you have printed the guide check it has printed correctly by measuring the below guide which should measure exactly 2cm.

Ring size guide