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RING SIZE CHART

Know & 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.

Ring Size Conversion

Here at Mappin & Webb, 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) UK Europe US China
37.8mm A - 1/2 -
39.1mm B - 1 -
40.4mm C - 1 1/2 -
41.7mm D 41 1/2 2 -
42.9mm E 42 3/4 2 1/2 -
44.2mm F 44 3 -
45.5mm G 45 1/4 3 3/8 -
46.8mm H 46 1/2 3 3/4 8
48.0mm I 47 3/4 4 1/4 9
48.7mm J 49 4 5/8 10
50.0mm K 50 5 1/8 11
51.2mm L 51 3/4 5 1/2 12
52.5mm M 52 3/4 6 13
53.8mm N 54 6 1/2 -
55.1mm O 55 1/4 7 -
56.3mm P 56 1/2 7 1/2 17
57.2mm Q 57 3/4 8 5/8 18
58.9mm R 59 8 5/8 19
60.2mm S 60 1/4 9 1/8 20
61.4mm T 61 1/2 9 5/8 21
62.7mm U 62 3/4 10 1/4 23
64.0mm V 63 10 5/8 24
65.3mm W 65 11 1/8 25
66.6mm X 66 1/4 11 5/8 26
67.8mm Y 67 1/2 12 27
68.5mm Z 68 3/4 12 1/2 28
Circumference
(mm)
37.8mm
39.1mm
40.4mm
41.7mm
42.9mm
44.2mm
45.5mm
46.8mm
48.0mm
48.7mm
50.0mm
51.2mm
52.5mm
53.8mm
55.1mm
56.3mm
57.2mm
58.9mm
60.2mm
61.4mm
62.7mm
64.0mm
65.3mm
66.6mm
67.8mm
68.5mm

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Inside Diameter Ring Size
(mm) UK Europe US China
11.9mm A - 1/2 -
12.3mm B - 1 -
12.7mm C - 1 1/2 -
13.1mm D 41 1/2 2 -
13.5mm E 42 3/4 2 1/2 -
13.9mm F 44 3 -
14.3mm G 45 1/4 3 3/8 -
14.7mm H 46 1/2 3 3/4 8
15.1mm I 47 3/4 4 1/4 9
15.5mm J 49 4 5/8 10
15.9mm K 50 5 1/8 11
16.3mm L 51 3/4 5 1/2 12
16.7mm M 52 3/4 6 13
17.1mm N 54 6 1/2 -
17.5mm O 55 1/4 7 -
17.9mm P 56 1/2 7 1/2 17
18.2mm Q 57 3/4 8 18
18.6mm R 59 8 5/8 19
19.1mm S 60.4 9 1/8 20
19.5mm T 61 1/2 9 5/8 21
20.0mm U 62 3/4 10 1/4 23
20.3mm V 63 10 5/8 24
20.7mm W 65 11 1/8 25
21.2mm X 66 1/4 11 5/8 26
21.5mm Y 67 1/2 12 27
21.9mm Z 68 3/4 12 1/2 28
Inside Diameter
(mm)
11.9mm
12.3mm
12.7mm
13.1mm
13.5mm
13.9mm
14.3mm
14.7mm
15.1mm
15.5mm
15.9mm
16.3mm
16.7mm
17.1mm
17.5mm
17.9mm
18.2mm
18.6mm
19.1mm
19.5mm
20.0mm
20.3mm
20.7mm
21.1mm
21.5mm
21.9mm

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Circumference Inside Diameter Ring Size
(mm) (mm) UK Europe US China
37.8mm 11.9mm A - 1/2 -
39.1mm 12.3mm B - 1 -
40.4mm 12.7mm C - 1 1/2 -
41.7mm 13.1mm D 41 1/2 2 -
42.9mm 13.5mm E 42 3/4 2 1/2 -
44.2mm 13.9mm F 44 3 -
45.5mm 14.3mm G 45 1/4 3 3/8 -
46.8mm 14.7mm H 46 1/2 3 3/4 8
48.0mm 15.1mm I 47 3/4 4 1/4 9
48.7mm 15.5mm J 49 4 5/8 10
50.0mm 15.9mm K 50 5 1/8 11
51.2mm 16.3mm L 51 3/4 5 1/2 12
52.5mm 16.7mm M 52 3/4 6 13
53.8mm 17.1mm N 54 6 1/2 -
55.1mm 17.5mm O 55 1/4 7 -
56.3mm 17.9mm P 56 1/2 7 1/2 17
57.2mm 18.2mm Q 57 3/4 8 18
58.9mm 18.6mm R 59 8 5/8 19
60.2mm 19.1mm S 60 1/4 9 1/8 20
61.4mm 19.5mm T 61 1/2 9 5/8 21
62.7mm 20.0mm U 62 3/4 10 1/4 23
64.0mm 20.3mm V 63 10 5/8 24
65.3mm 20.7mm W 65 11 1/8 25
66.6mm 21.1mm X 66 1/4 11 5/8 26
67.8mm 21.5mm Y 67 1/2 12 27
68.5mm 21.5mm Z 68 3/4 12 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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