Ring Size Chart

Ring Diameter (MM) USA/Canada United Kingdom France Germany Japan Switzerland
14.0 mm.
3
F
44
14
4
4
14.4 mm.
G
45¼
14½
6⅓
14.8 mm.
4
46½
15
7
15.2 mm.
47¾
15¼
8
8
15.6 mm.
5
49
15¾
9
16.0 mm.
L
50¾
16
10½
10¾
16.5 mm.
6
M
51½
16½
12
12¾
16.9 mm.
N
52¾
17
13
14
17.3 mm.
7
O
54
17¼
14
15¼
17.7 mm.
P
55¼
17¾
15
16½
18.2 mm.
8
Q
56¾
18
16
17¾
18.6 mm.
58
18½
17
18½
19.0 mm.
9
59¼
19
18
20
19.4 mm.
60¾
19½
19
21
19.8 mm.
10
61¾
20
20
21¾
20.2 mm.
10½
62¾
20¼
22
22¾
20.6 mm.
11
64¼
20¾
23
24
21.0 mm.
11½
66
21
24
25¾
21.4 mm.
12
Y
67¼
21¼
25
27½
21.8 mm.
12½
Z
68
21¾
26
28¾
22.2 mm.
13
Z + 1
69
22
27
29¼
22.6 mm.
13½
Z + 1.5
71
22.6
31

Ring Size Chart FAQs

How do I use the chart to determine my ring size?

Measuring ring size is best done with a set of master ring sizes, preferably with metal bands. Most jewelry stores offer this free service, just like most shoe stores will size you at no charge.
If you can’t visit a store or want to keep the ring a surprise, measure the finger’s size in millimeters. Then, use the chart to find the correct ring size.

Is there a difference between men's and women's ring sizes?

Men’s rings are usually wider than standard sizes. You should consider this difference when getting a ring size. We recommend using thicker bands or sizers for men to get an accurate size.

In contrast, using a thinner sizing ring or band is advisable for most women’s rings.

Does ring size change over time?

Factors like weight gain, weight loss, temperature, and water retention can affect finger size. Pregnant women may observe a temporary change in size as they near the end of pregnancy.

Do different countries have different ring size standards?

Yes, ring sizes can vary based on country standards. Ensure you’re using the chart corresponding to your region, and you can use our ring size conversion chart to translate ring sizing if needed.

What should I do if I order a ring online that doesn't fit?

We consistently suggest buying from a store that provides complimentary sizing within a specific timeframe. At Brilliance, we offer free ring resizing within 90 days of your delivery to ensure a perfect fit.

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Ring Size Chart

Use our Ring Size Conversion Chart below to find your ring size in different countries.

Ring Diameter (MM) Usa/Canada Size
14.0 mm
3
14.4 mm
3.5
14.8 mm
4
15.2 mm
4.5
15.6 mm
5
16.0 mm
5.5
16.5 mm
6
16.9 mm
6.5
17.3 mm
7
17.7 mm
7.5
18.2 mm
8
18.6 mm
8.5
19.0 mm
9
19.4 mm
9.5
19.8 mm
10
20.2 mm
10.5
20.6 mm
11