Ring size guide
Our ring size chart corresponds to the inner diameter of the ring.
Using Ring Size Conversion chart below to find your ring size in different countries.
Ring Size Chart
Inside Diameter (MM) |
Inside Circumference (MM) |
Our ring size |
USA Canada Mexico |
Europe | UK AU & NZ |
Japan India Singapore |
Hong Kong | Switzerland |
---|---|---|---|---|---|---|---|---|
14 mm | 44 mm | 4 | - | - | - | - | - | - |
14.1 mm | 44.3 mm | - | 3 | 44 | F½ | 4 | 6 | 4 |
14.3 mm | 44.9 mm | - | - | 45 | G | 5 | - | 5¼ |
14.4 mm | 45 mm | 5 | - | - | - | - | - | - |
14.5 mm | 45.6 mm | - | 3.5 | - | G½ | - | 7 | - |
14.6 mm | 46 mm | 6 | - | - | - | - | - | - |
14.7 mm | 46.2 mm | - | - | 46 | H | 6 | - | 6½ |
14.9 mm | 46.8 mm | - | 4 | 47 | H½ | 7 | 8 | - |
15 mm | 47 mm | 7 | - | - | - | - | - | - |
15.1 mm | 47.4 mm | - | - | - | I | - | - | 7¾ |
15.2 mm | 48 mm | 8 | - | - | - | - | - | - |
15.3 mm | 48.1 mm | - | 4.5 | 48 | I½ | 8 | 9 | - |
15.5 mm | 48.7 mm | - | - | - | J | - | 10 | 9 |
15.6 mm | 49 mm | 9 | - | - | - | - | - | - |
15.7 mm | 49.3 mm | - | 5 | 49 | J½ | 9 | - | - |
15.9 mm | 50 mm | 10 | - | 50 | K | - | 11 | 10 |
16.1 mm | 50.6 mm | - | 5.5 | - | K½ | 10 | - | - |
16.2 mm | 51 mm | 11 | - | - | - | - | - | - |
16.3 mm | 51.2 mm | - | - | 51 | L | - | 12 | 11¾ |
16.5 mm | 51.8 mm | - | 6 | 52 | L½ | 11 | 13 | 12¾ |
16.6 mm | 52 mm | 12 | - | - | - | - | - | - |
16.7 mm | 52.5 mm | - | - | - | M | 12 | - | - |
16.8 mm | 53 mm | 13 | - | - | - | - | - | - |
16.9 mm | 53.1 mm | - | 6.5 | 53 | M½ | 13 | 14 | 14 |
17.1 mm | 53.7 mm | - | - | - | N | - | - | - |
17.2 mm | 54 mm | 14 | - | - | - | - | - | - |
17.3 mm | 54.3 mm | - | 7 | 54 | N½ | 14 | 15 | 15¼ |
17.5 mm | 55 mm | 15 | - | 55 | O | - | 16 | - |
17.7 mm | 55.6 mm | - | 7.5 | - | O½ | 15 | - | 16½ |
17.8 mm | 56 mm | 16 | - | - | - | - | - | - |
17.9 mm | 56.2 mm | - | - | 56 | P | - | 17 | - |
18.1 mm | 56.9 mm | - | 8 | 57 | P½ | 16 | - | 17¾ |
18.15 mm | 57 mm | 17 | - | - | - | - | - | - |
18.2 mm | 57.2 mm | - | - | - | - | - | 18 | - |
18.3 mm | 57.5 mm | - | - | - | Q | - | - | - |
18.4 mm | 58 mm | 18 | - | - | - | - | - | - |
18.5 mm | 58.1 mm | 18 | 8.5 | 58 | Q½ | 17 | - | - |
18.7 mm | 59 mm | 19 | - | - | - | - | - | - |
18.8 mm | 59.1 mm | - | - | 59 | R | - | 19 | 19 |
19 mm | 59.7 mm | - | 9 | - | R½ | 18 | 20 | - |
19.1 mm | 60 mm | 20 | - | - | - | - | - | |
19.2 mm | 60.3 mm | - | - | 60 | S | - | - | 20¼ |
19.4 mm | 60.9 mm | - | 9.5 | 61 | S½ | 19 | 21 | - |
19.4 mm | 61 mm | 21 | - | - | - | - | - | - |
19.6 mm | 61.6 mm | - | - | - | T | - | - | 21½ |
19.7 mm | 62 mm | 22 | - | - | - | - | - | - |
19.8 mm | 62.2 mm | - | 10 | 62 | T½ | 20 | 22 | - |
20 mm | 62.8 mm | - | - | - | U | 21 | - | - |
20.1 mm | 63 mm | 23 | - | - | - | - | - | - |
20.2 mm | 63.5 mm | - | 10.5 | 63 | U½ | 22 | 23 | 22¾ |
20.3 mm | 64 mm | 24 | - | - | - | - | - | - |
20.4 mm | 64.1 mm | - | - | 64 | V | - | 24 | - |
20.6 mm | 64.7 mm | - | 11 | - | V½ | 23 | - | - |
20.7 mm | 65 mm | 25 | - | - | - | - | - | - |
20.8 mm | 65.3 mm | - | - | 65 | W | - | 25 | 25 |
21 mm | 66 mm | 26 | 11.5 | 66 | W½ | 24 | - | - |
21.2 mm | 66.6 mm | - | - | - | X | - | 26 | - |
21.3 mm | 67 mm | 27 | - | - | - | - | - | - |
21.4 mm | 67.2 mm | - | 12 | 67 | X½ | 25 | 27 | 27½ |
21.6 mm | 67.9 mm | - | 0 | 0 | Y | - | - | - |
21.6 mm | 68 mm | 28 | - | - | - | - | - | - |
21.8 mm | 68.5 mm | - | 12.5 | 68 | Z | 26 | - | 28¾ |
21.9 mm | 69 mm | 29 | - | - | - | - | - | - |
22 mm | 69.1 mm | - | - | 69 | - | Z½ | - | - |
22.2 mm | 69.7 mm | - | 13 | 70 | - | 27 | - | - |
22.3 mm | 70 mm | 30 | - | - | - | - | - | - |
22.4 mm | 70.4 mm | - | - | - | Z+1 | - | - | - |
22.6 mm | 71 mm | 31 | 13.5 | - | Z+2 | - | - | - |
22.9 mm | 72 mm | 32 | - | - | - | - | - | - |
23.2 mm | 73 mm | 33 | - | - | - | - | - | - |
23.5 mm | 74 mm | 34 | - | - | - | - | - | - |
23.9 mm | 75 mm | 35 | - | - | - | - | - | - |
24.2 mm | 76 mm | 36 | - | - | - | - | - | - |
Source: Ring Size of De Beers Jewellers
How to find your ring size
There are two methods to measure your ring size:
1: Measure your own finger
1.1 Measure your own finger by using a ring measurement tool
1.2 Measure your own finger by wrapping a strip of paper or wide thread around it
Step 1: Measure your finger by wrapping a strip of paper or wide tread around it, leaving enough space to slide the ring over your knuckle.
Step 2: Mark the place where the paper strip meets and measure the length by using a ruler.
Step 3: The flexible tape measurements are the circumference of your ring. To convert circumference to diameter, you can divide the millimeter (mm) Circumference measure by 3.14 (D = C/3.14) or use an online converter. And refer to our ring size chart to determine your ring size.
E.g. If the circumference is 55 mm, you divide by 3.14 to get 17.5 of ring diameter, then you should choose a size 15. If you fall in between sizes, we recommend that you chose the larger size.
As a rule of thumb, you can always remember that you will probably need a slightly bigger size is if the ring is wide versus slim. If the ring is sleek and slim we recommend that you opt for a lightly smaller size eg. 0,5 size difference.
This method can be used to find the ring size of any of your fingers.
Please note that the ring size can vary depending on the ring design and fit on your finger.
2: Measure your own ring
Measure one of your own rings using a ruler. Lay the ring on a flat surface and place a ruler on top of the ring. Measure the ring (inside diameter) on the widest part of the ring. When it comes to selecting the perfect ring size, precision is key, as even a few millimeters can make a difference.
Note:
- The fingers on your dominant hand tend to be larger than those on your non-dominant hand, so keep that in mind when measuring for your ring size.
- Cold weather can cause your fingers to shrink a bit, while heat or water retention caused by food or medications, can cause finger swelling.
At AME Jewellery, if your ring does not fit, take it back to us and have it resized for FREE.
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