Ring Sizing Guide
October 5, 2022 2025-03-24 10:54Ring Sizing Guide
How to measure for a ring correctly
Ring Sizing Guide
Trying to figure out your ring size at home can be tricky, especially if you are buying a ring as a surprise for someone. This ring sizing guide will help you to measure your ring size so that you can be sure of getting the perfect fit. With this ring sizing guide, you’ll be able to find the perfect ring for you in no time!
Do’s
- Do figure out the size of the actual finger you intend to wear the ring on – sizes differ by finger but also by hand!
- Watch out for Goldilocks – Do make sure you are measuring your finger when you are comfortably warm, not too hot nor too cold, as your finger will swell or shrink accordingly!
- Do err on the side of larger if you are in between sizes. It’s a good idea to measure the size of the knuckle you have to get the ring over also – a size in between the knuckle and the finger might be the best bet. It should be a wobble/pull effort over the knuckle though and should not fit easily over, otherwise your ring will fall off!
Don’ts
- Don’t measure once. Take the measurement 3 or 4 times, preferably using different methods, to ensure best accuracy.
- Don’t assume the size for the left hand finger will be the same on the right, or vice versa.
Method one
Use your local Jeweller
Pop into your local jeweller and ask them kindly to help size your finger. This method is the most accurate way to ensure you get it right.
Method two
Measure your own finger
- Wrap a thin strip of paper or length of string around the base of the finger you wish to wear the ring on. If you have larger knuckles measure this too – you may want to select a size in between to allow the ring to slip on comfortably.
- Mark the spot where the paper/string meets.
- Measure the paper/string’s distance with a ruler.
- Use the ring size chart to determine your ring size.
Method three
Measure your own ring
- Find a ring you already have that fits the finger you wish to size.
- Place it over a ruler and measure the inside ring diameter.
- Use the ring size chart to determine your size.
| Diameter (mm) | Inside<br>circumference<br>(mm) | NZ, Aus,<br>UK &<br>Ireland | USA &<br>Canada | France | Germany | Italy,<br>Spain,<br>Netherland,<br>Switzerland | Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China |
|---|---|---|---|---|---|---|---|
|
Diameter (mm)
14.1
|
Inside<br>circumference<br>(mm)
44.2
|
NZ, Aus,<br>UK &<br>Ireland
F
|
USA &<br>Canada
3
|
France
44
|
Germany
14
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
4
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
4
|
|
Diameter (mm)
14.3
|
Inside<br>circumference<br>(mm)
44.8
|
NZ, Aus,<br>UK &<br>Ireland
F ½
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
5 ¼
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
5
|
|
Diameter (mm)
14.5
|
Inside<br>circumference<br>(mm)
45.5
|
NZ, Aus,<br>UK &<br>Ireland
G
|
USA &<br>Canada
3.5
|
France
45 ¼
|
Germany
14 ½
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
14.7
|
Inside<br>circumference<br>(mm)
46.1
|
NZ, Aus,<br>UK &<br>Ireland
G ½
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
6 ½
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
6
|
|
Diameter (mm)
14.9
|
Inside<br>circumference<br>(mm)
46.8
|
NZ, Aus,<br>UK &<br>Ireland
H
|
USA &<br>Canada
4
|
France
46 ½
|
Germany
15
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
7
|
|
Diameter (mm)
15.1
|
Inside<br>circumference<br>(mm)
47.4
|
NZ, Aus,<br>UK &<br>Ireland
H ½
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
7 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
15.3
|
Inside<br>circumference<br>(mm)
48
|
NZ, Aus,<br>UK &<br>Ireland
I
|
USA &<br>Canada
4.5
|
France
47 ¾
|
Germany
15 ¼
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
8
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
8
|
|
Diameter (mm)
15.5
|
Inside<br>circumference<br>(mm)
48.7
|
NZ, Aus,<br>UK &<br>Ireland
J
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
9
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
15.7
|
Inside<br>circumference<br>(mm)
49.3
|
NZ, Aus,<br>UK &<br>Ireland
J ½
|
USA &<br>Canada
5
|
France
49
|
Germany
15 ¾
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
9 ½
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
9
|
|
Diameter (mm)
15.9
|
Inside<br>circumference<br>(mm)
50
|
NZ, Aus,<br>UK &<br>Ireland
K
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
10
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
16.1
|
Inside<br>circumference<br>(mm)
50.6
|
NZ, Aus,<br>UK &<br>Ireland
K ½
|
USA &<br>Canada
5.5
|
France
50 ¾
|
Germany
16
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
10 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
10
|
|
Diameter (mm)
16.3
|
Inside<br>circumference<br>(mm)
51.2
|
NZ, Aus,<br>UK &<br>Ireland
L
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
11 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
16.5
|
Inside<br>circumference<br>(mm)
51.9
|
NZ, Aus,<br>UK &<br>Ireland
L ½
|
USA &<br>Canada
6
|
France
51 ½
|
Germany
16 ½
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
12 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
11
|
|
Diameter (mm)
16.7
|
Inside<br>circumference<br>(mm)
52.5
|
NZ, Aus,<br>UK &<br>Ireland
M
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
12
|
|
Diameter (mm)
16.9
|
Inside<br>circumference<br>(mm)
53.1
|
NZ, Aus,<br>UK &<br>Ireland
M ½
|
USA &<br>Canada
6.5
|
France
52 ¾
|
Germany
17
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
14
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
13
|
|
Diameter (mm)
17.1
|
Inside<br>circumference<br>(mm)
53.8
|
NZ, Aus,<br>UK &<br>Ireland
N
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
17.3
|
Inside<br>circumference<br>(mm)
54.4
|
NZ, Aus,<br>UK &<br>Ireland
N ½
|
USA &<br>Canada
7
|
France
54
|
Germany
17 ¼
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
15 ¼
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
14
|
|
Diameter (mm)
17.5
|
Inside<br>circumference<br>(mm)
55.1
|
NZ, Aus,<br>UK &<br>Ireland
O
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
17.7
|
Inside<br>circumference<br>(mm)
55.7
|
NZ, Aus,<br>UK &<br>Ireland
O ½
|
USA &<br>Canada
7.5
|
France
55 ¼
|
Germany
17 ¾
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
16 ½
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
15
|
|
Diameter (mm)
17.9
|
Inside<br>circumference<br>(mm)
56.3
|
NZ, Aus,<br>UK &<br>Ireland
P
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
18.1
|
Inside<br>circumference<br>(mm)
57
|
NZ, Aus,<br>UK &<br>Ireland
P ½
|
USA &<br>Canada
8
|
France
56 ¾
|
Germany
18
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
17 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
16
|
|
Diameter (mm)
18.3
|
Inside<br>circumference<br>(mm)
57.6
|
NZ, Aus,<br>UK &<br>Ireland
Q
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
18.5
|
Inside<br>circumference<br>(mm)
58.3
|
NZ, Aus,<br>UK &<br>Ireland
Q ½
|
USA &<br>Canada
8.5
|
France
58
|
Germany
18 ½
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
18 ½
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
17
|
|
Diameter (mm)
18.8
|
Inside<br>circumference<br>(mm)
58.9
|
NZ, Aus,<br>UK &<br>Ireland
R
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
19
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
19
|
Inside<br>circumference<br>(mm)
59.5
|
NZ, Aus,<br>UK &<br>Ireland
R ½
|
USA &<br>Canada
9
|
France
59 ¼
|
Germany
19
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
20
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
18
|
|
Diameter (mm)
19.2
|
Inside<br>circumference<br>(mm)
60.2
|
NZ, Aus,<br>UK &<br>Ireland
S
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
20 ¼
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
19.4
|
Inside<br>circumference<br>(mm)
60.8
|
NZ, Aus,<br>UK &<br>Ireland
S ½
|
USA &<br>Canada
9.5
|
France
60 ¾
|
Germany
19 ½
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
21
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
19
|
|
Diameter (mm)
19.6
|
Inside<br>circumference<br>(mm)
61.4
|
NZ, Aus,<br>UK &<br>Ireland
T
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
21 ½
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
19.8
|
Inside<br>circumference<br>(mm)
62.1
|
NZ, Aus,<br>UK &<br>Ireland
T ½
|
USA &<br>Canada
10
|
France
61 ¾
|
Germany
20
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
21 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
20
|
|
Diameter (mm)
20
|
Inside<br>circumference<br>(mm)
62.7
|
NZ, Aus,<br>UK &<br>Ireland
U
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
21
|
|
Diameter (mm)
20.2
|
Inside<br>circumference<br>(mm)
63.4
|
NZ, Aus,<br>UK &<br>Ireland
U ½
|
USA &<br>Canada
10.5
|
France
62 ¾
|
Germany
20 ¼
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
22
|
|
Diameter (mm)
20.4
|
Inside<br>circumference<br>(mm)
64
|
NZ, Aus,<br>UK &<br>Ireland
V
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
20.6
|
Inside<br>circumference<br>(mm)
64.6
|
NZ, Aus,<br>UK &<br>Ireland
V ½
|
USA &<br>Canada
11
|
France
64 ¼
|
Germany
20 ¾
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
24
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
23
|
|
Diameter (mm)
20.8
|
Inside<br>circumference<br>(mm)
W
|
NZ, Aus,<br>UK &<br>Ireland
W
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
25
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
21
|
Inside<br>circumference<br>(mm)
65.9
|
NZ, Aus,<br>UK &<br>Ireland
W ½
|
USA &<br>Canada
11.5
|
France
66
|
Germany
21
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
25 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
24
|
|
Diameter (mm)
21.2
|
Inside<br>circumference<br>(mm)
66.6
|
NZ, Aus,<br>UK &<br>Ireland
X
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
21.4
|
Inside<br>circumference<br>(mm)
67.2
|
NZ, Aus,<br>UK &<br>Ireland
X ½
|
USA &<br>Canada
12
|
France
67 ¼
|
Germany
21 ¼
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
27 ½
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
25
|
|
Diameter (mm)
21.6
|
Inside<br>circumference<br>(mm)
67.8
|
NZ, Aus,<br>UK &<br>Ireland
Y
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
21.8
|
Inside<br>circumference<br>(mm)
68.5
|
NZ, Aus,<br>UK &<br>Ireland
Z
|
USA &<br>Canada
12.5
|
France
68
|
Germany
21 ¾
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
28 ¾
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
26
|
|
Diameter (mm)
22
|
Inside<br>circumference<br>(mm)
69.1
|
NZ, Aus,<br>UK &<br>Ireland
Z ½
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
22.2
|
Inside<br>circumference<br>(mm)
69.7
|
NZ, Aus,<br>UK &<br>Ireland
|
USA &<br>Canada
13
|
France
69
|
Germany
22
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
29 ¼
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
27
|
|
Diameter (mm)
22.4
|
Inside<br>circumference<br>(mm)
70.4
|
NZ, Aus,<br>UK &<br>Ireland
Z+1
|
USA &<br>Canada
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
|
Diameter (mm)
22.6
|
Inside<br>circumference<br>(mm)
71
|
NZ, Aus,<br>UK &<br>Ireland
|
USA &<br>Canada
13.5
|
France
|
Germany
|
Italy,<br>Spain,<br>Netherland,<br>Switzerland
|
Hong Kong,<br>Macau,<br>Taiwan,<br>Japan,<br>Singapore,<br>China
|
Method four
Match your own ring
To size a ring you already have,
- Print out our Ring Sizing Guide to 100% (ensure page scaling is set to “none”)
- Check the size is calibrated by measuring the line below on your paper – it should be 5cm.
- Find a ring you already have that fits the finger you wish to size.
- Lay it directly onto the circles below to find the one where the black circle matches your ring’s inner diameter.
- If your size falls somewhere between two sizes, you should opt for the bigger size.
Method five
Request a ring sizer
- Request a reusable ring sizer from us (you will need to register with us for your address details).
- Once received, simply push the end through the buckle to form a ring shape.
- Slip the ring sizer onto the finger you wish to size.
- Adjust to give a comfortable fit, checking that it just slips back over the knuckle.
- When best fit is achieved, read off size indicated by the arrow.
