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Selling Fine Jewelry Since 1897
Authorized Retailer of Luxury Brands

Ring Size ChartKnow & Measure
Your Ring Size

There are several ways to check your size before you buy that perfect ring. The most accurate is to visit your nearest UK showroom where we can measure your finger exactly.

Printable Ring Sizer

Printable Ring Sizer

At Goldsmiths, we consider ourselves to be the experts when it comes to rings, and we recognise that obtaining the perfect fit is extremely important. With that in mind, we will work with you to ensure you know how to measure ring size to find the perfect fit.

You can print this off and use it to quickly work out your own, or your partner’s, ring size in mm. The thicker the ring, the tighter the fit, so if you choose a ring with a deep band width, you will likely need to go up one size.

Download printable Ring Sizer

Alternatively, view our How To Measure Your Ring Size guide.

Ring Size Conversion

Here at Goldsmiths, our ring sizes are specified in standard UK sizing. For ease, we have also illustrated the conversions to Europe, US and China brand sizing, to ensure that you choose the perfect size for you.

Circumference
Inside Diameter
Circumference Ring Size
(mm) US UK Europe China
37.8mm 1.5 A - -
39.1mm 1 B - -
40.4mm 1.5 C - -
41.7mm 2 D 41 1/2 -
42.9mm 2.5 E 42 3/4 -
44.2mm 3 F 44 -
45.5mm 3.5 G 45 1/4 5
46.8mm 4 H 46 1/2 7
48.0mm 4.5 I 47 3/4 8
50.0mm 5 J 1/2 49 9
50.1mm 5.5 K 1/2 50 1/4 10
51.9mm 6 L 1/2 51 1/2 11
53.1mm 6.5 - 52 3/4 -
54.5mm 7 - 54 -
55.8mm 7.5 O 1/2 55 1/4 17
57.2mm 8 - 56 1/2 18
58.4mm 8.5 Q 1/2 57.75 19
59.6mm 9 R 1/2 59 20
61.0mm 9.5 - 60 1/4 21
62.3mm 10 U 61 1/2 23
63.5mm 10.5 - 62.75 24
65.0mm 11 W 64 25
66.2mm 11.5 X 65 1/4 26
67.5mm 12 Y 66 1/2 27
68.7mm 12.5 Z 67 3/4 28
Circumference
(mm)
37.8mm
39.1mm
40.4mm
41.7mm
42.9mm
44.2mm
45.5mm
46.8mm
48.0mm
50.0mm
50.1mm
51.9mm
53.1mm
54.5mm
55.8mm
57.2mm
58.4mm
59.6mm
61.0mm
62.3mm
63.5mm
65.0mm
66.2mm
67.5mm
68.7mm

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Inside Diameter Ring Size
(mm) UK US Europe China
11.9mm 0.5 A - -
12.3mm 1 B - -
12.7mm 1.5 C - -
13.1mm 2 D 41 1/2 -
13.5mm 2.5 E 42 3/4 -
14.0mm 3 F 44 -
14.5mm 3.5 G 45 1/4 5
14.8mm 4 H 46 1/2 7
15.2mm 4.5 I 47 3/4 8
15.7mm 5 J 1/2 49 9
16.1mm 5.5 K 1/2 50 1/4 10
16.5mm 6 L 1/2 51 1/2 11
17.0mm 6.5 - 52 3/4 -
17.4mm 7 - 54 -
17.8mm 7.5 O 1/2 55 1/4 17
18.2mm 8 - 56 1/2 18
18.6mm 8.5 Q 1/2 57 3/4 19
19.0mm 9 R 1/2 59 20
19.4mm 9.5 - 60 1/4 21
19.8mm 10 U 61 1/2 23
20.3mm 10.5 - 62 3/4 24
20.7mm 11 W 64 25
21.1mm 11.5 X 65 1/4 26
21.5mm 12 Y 66 1/2 27
21.9mm 12.5 Z 67 3/4 28
Inside Diameter
(mm)
11.9mm
12.3mm
12.7mm
13.1mm
13.5mm
14.0mm
14.5mm
14.8mm
15.2mm
15.7mm
16.1mm
16.5mm
17.0mm
17.4mm
17.8mm
18.2mm
18.6mm
19.0mm
19.4mm
19.8mm
20.3mm
20.7mm
21.1mm
21.5mm
21.9mm

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Circumference Inside Diameter Ring Size
(mm) (mm) US UK Europe China
37.8mm 11.9mm 0.5 A - -
39.1mm 12.3mm 1 B - -
40.4mm 12.3mm 1.5 C - -
41.7mm 13.1mm 2 D 41 1/2 -
42.9mm 13.5mm 2.5 E 42 3/4 -
44.2mm 14.0mm 3 F 44 -
45.5mm 14.5mm 3.5 G 45 1/4 5
46.8mm 14.8mm 4 H 46 1/2 7
48.0mm 15.2mm 4.5 I 47 3/4 8
50.0mm 15.7mm 5 J 1/2 49 9
50.1mm 16.1mm 5.5 K 1/2 50 1/4 10
51.9mm 16.5mm 6 L 1/2 51 1/2 11
53.1mm 17mm 6.5 - 52 3/4 -
54.5mm 17.4mm 7 54 -
55.8mm 17.8mm 7.5 O 1/2 55 1/4 17
57.2mm 18.2mm 8 - 56 1/2 18
58.4mm 18.6mm 8.5 Q 1/2 57 3/4 19
59.6mm 19.0mm 9 R 1/2 59 20
61.0mm 19.4mm 9.5 - 60 1/4 21
62.3mm 19.8mm 10 U 61 1/2 23
63.5mm 20.3mm 10.5 - 62.75 24
65.0mm 20.7mm 11 W 64 25
66.2mm 21.1mm 11.5 X 65 1/4 26
67.5mm 21.5mm 12 Y 66 1/2 27
68.7mm 21.9mm 12.5 Z 67 3/4 28

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FAQs

What if the Ring Still Turns Out To be the Wrong Fit?

What if You're Planning a Surprise Proposal?

Alternative Ring Sizing Options

Does the Style of Ring affect my ring size?

What If My Ring Is Too Big Or Too Small?

The Next Stage

HOW TO MEASURE YOUR RING SIZE GUIDE

HOW TO MEASURE YOUR RING SIZE GUIDE

If you do not have a printer at home or are unable to visit your nearest UK showroom where our experts can do this for you, we have created a guide on a choice of two methods to use at home to help find your ring size.

Visit our How To Measure Your Ring Size guide.

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