International ring size conversation chart UK, USA and Europe
| Ring Diameter (Inside) | Ring Circumference (Inside) | ‹ International Standard Sizes › | |||||||
| MM | Inches | MM | Inches | Britan & Australia | USA & Canada | Europe | German/Russian/Asia | India/China/Japan | Netherlands/Swiss |
| 9.9 | 0.390 | 31.1 | 1.22 | · | 0000 | · | · | · | · |
| 10.7 | 0.442 | 33.7 | 1.39 | · | 00 | · | · | · | · |
| 11.5 | 0.454 | 36.2 | 1.43 | · | 0 | · | · | · | · |
| 12.0 | 0.470 | 37.5 | 1.50 | A | 1/2 | · | · | · | · |
| 12.2 | 0.479 | 38.3 | 1.51 | A 1/2 | 3/4 | · | · | · | · |
| 12.4 | 0.487 | 38.9 | 1.53 | B | 1 | · | · | 1 | · |
| 12.6 | 0.506 | 39.6 | 1.56 | B 1/2 | 1 1/4 | · | · | · | · |
| 12.8 | 0.503 | 40.2 | 1.58 | C | 1 1/2 | · | · | · | · |
| 13.0 | 0.511 | 40.8 | 1.61 | C 1/2 | 1 3/4 | · | · | · | · |
| 13.2 | 0.520 | 41.5 | 1.63 | D | 2 | 41 1/2 | 13 1/2 | 2 | 1 1/2 |
| 13.4 | 0.528 | 42.1 | 1.66 | D 1/2 | 2 1/4 | · | · | · | · |
| 13.6 | 0.536 | 42.8 | 1.68 | E | 2 1/2 | 42 3/4 | 13 3/4 | 3 | 2 3/4 |
| 13.8 | 0.544 | 43.5 | 1.71 | E 1/2 | 2 3/4 | · | · | · | · |
| 14.0 | 0.553 | 44.1 | 1.74 | F | 3 | 44 | 14 | 4 | 4 |
| 14.2 | 0.557 | 44.5 | 1.75 | F 1/2 | 3 1/8 | · | · | · | · |
| 14.3 | 0.561 | 44.8 | 1.76 | F 3/4 | 3 1/4 | · | · | · | · |
| 14.4 | 0.565 | 45.1 | 1.77 | G | 3 3/8 | 45 1/4 | · | 5 | 5 1/4 |
| 14.5 | 0.568 | 45.4 | 1.79 | G 1/4 | 3 1/2 | · | 14 1/2 | · | · |
| 14.6 | 0.573 | 45.7 | 1.80 | G 1/2 | 3 5/8 | · | · | 6 | · |
| 14.7 | 0.576 | 46.0 | 1.81 | H | 3 3/4 | 46 1/2 | · | · | 6 1/2 |
| 14.9 | 0.585 | 46.7 | 1.84 | H 1/2 | 4 | · | 15 | 7 | · |
| 15.0 | 0.592 | 47.3 | 1.86 | I | 4 1/4 | 47 3/4 | · | · | 7 3/4 |
| 15.3 | 0.601 | 48.0 | 1.89 | I 1/2 | 4 1/2 | · | 15 1/4 | 8 | · |
| 15.4 | 0.606 | 48.4 | 1.90 | J | 4 5/8 | 50 | 15 1/2 | · | 9 |
| 15.5 | 0.611 | 48.8 | 1.92 | J 1/4 | 4 3/4 | · | · | · | · |
| 15.7 | 0.618 | 50.3 | 1.94 | J 1/2 | 5 | · | 15 3/4 | 9 | · |
| 15.8 | 0.622 | 50.6 | 1.95 | K | 5 1/8 | 50 | · | · | 10 |
| 15.9 | 0.625 | 50.0 | 1.97 | K 1/4 | 5 1/4 | · | · | · | · |
| 16.0 | 0.630 | 50.3 | 1.98 | K 1/2 | 5 3/8 | · | · | 10 | · |
| 16.1 | 0.634 | 50.6 | 1.99 | L | 5 1/2 | 51 3/4 | 16 | · | 11 3/4 |
| 16.3 | 0.642 | 51.2 | 2.02 | L 1/4 | 5 3/4 | · | · | · | · |
| 16.4 | 0.646 | 51.6 | 2.03 | L 1/2 | 5 7/8 | · | · | · | · |
| 16.5 | 0.650 | 51.9 | 2.04 | M | 6 | 52 3/4 | 16 1/2 | 12 | 12 3/4 |
| 16.7 | 0.658 | 52.5 | 2.07 | M 1/2 | 6 1/4 | · | · | · | · |
| 16.9 | 0.666 | 53.2 | 2.09 | N | 6 1/2 | 54 | 17 | 13 | 14 |
| 17.1 | 0.674 | 53.8 | 2.12 | N 1/2 | 6 3/4 | · | · | · | · |
| 17.4 | 0.683 | 54.5 | 2.15 | O | 7 | 55 1/4 | 17 1/4 | 14 | 15 1/4 |
| 17.5 | 0.687 | 54.8 | 2.16 | O 1/2 | 7 1/4 | · | · | · | · |
| 17.8 | 0.698 | 55.8 | 2.20 | P | 7 1/2 | 56 1/2 | 17 3/4 | 15 | 16 1/2 |
| 18.0 | 0.707 | 56.5 | 2.22 | P 1/2 | 7 3/4 | · | · | · | · |
| 18.2 | 0.716 | 57.1 | 2.25 | Q | 8 | 57 3/4 | 18 | 16 | 17 3/4 |
| 18.4 | 0.722 | 57.7 | 2.27 | Q 1/2 | 8 1/4 | · | · | · | · |
| 18.5 | 0.729 | 58.2 | 2.29 | Q 3/4 | 8 1/2 | · | 18 1/2 | 17 | · |
| 18.6 | 0.733 | 58.5 | 2.30 | R | 8 5/8 | 59 | · | · | 19 |
| 18.7 | 0.736 | 58.7 | 2.31 | R 1/4 | 8 3/4 | · | · | · | · |
| 18.8 | 0.740 | 59.1 | 2.32 | R 1/2 | 8 7/8 | · | · | · | · |
| 18.9 | 0.743 | 59.3 | 2.35 | R 3/4 | 9 | · | 19 | 18 | · |
| 19.1 | 0.752 | 60.0 | 2.36 | S | 9 1/8 | 60 1/4 | · | · | 20 1/4 |
| 19.2 | 0.757 | 60.4 | 2.38 | S 1/4 | 9 1/4 | · | · | · | · |
| 19.3 | 0.760 | 60.7 | 2.39 | S 1/2 | 9 3/8 | · | · | · | · |
| 19.4 | 0.764 | 61.0 | 2.40 | S 3/4 | 9 1/2 | · | 19 1/2 | 19 | · |
| 19.5 | 0.768 | 61.3 | 2.41 | T | 9 5/8 | 61 1/2 | · | · | 21 1/2 |
| 19.6 | 0.772 | 61.6 | 2.43 | T 1/4 | 9 3/4 | · | · | · | · |
| 19.8 | 0.781 | 62.3 | 2.45 | T 1/2 | 10 | · | 20 | 20 | · |
| 20.0 | 0.780 | 62.9 | 2.48 | U | 10 1/4 | 62 3/4 | · | 21 | 22 3/4 |
| 20.2 | 0.795 | 63.5 | 2.50 | U 1/2 | 10 1/2 | · | 20 1/4 | 22 | · |
| 20.3 | 0.800 | 63.8 | 2.51 | V | 10 5/8 | 63 | · | · | 23 3/4 |
| 20.4 | 0.805 | 64.2 | 2.53 | V 1/4 | 10 3/4 | · | · | · | · |
| 20.7 | 0.814 | 65.0 | 2.56 | V 1/2 | 11 | · | 20 3/4 | 23 | · |
| 20.8 | 0.817 | 65.2 | 2.57 | W | 11 1/8 | 65 | · | · | 25 |
| 20.9 | 0.821 | 65.5 | 2.58 | W 1/4 | 11 1/4 | · | · | · | · |
| 20.9 | 0.824 | 65.8 | 2.59 | W 1/2 | 11 3/8 | · | · | · | · |
| 21.0 | 0.830 | 66.2 | 2.61 | W 3/4 | 11 1/2 | · | 21 | 24 | · |
| 21.2 | 0.834 | 66.5 | 2.62 | X | 11 5/8 | 66 1/4 | · | · | 26 1/4 |
| 21.2 | 0.836 | 66.7 | 2.63 | X 1/4 | 11 3/4 | · | · | · | · |
| 21.3 | 0.838 | 66.9 | 2.64 | X 1/2 | 11 7/8 | · | · | · | · |
| 21.5 | 0.846 | 67.5 | 2.66 | Y | 12 | 67 1/2 | 21 1/4 | 25 | 27 1/2 |
| 21.7 | 0.854 | 68.1 | 2.68 | Y 1/2 | 12 1/4 | · | · | · | · |
| 21.9 | 0.861 | 68.8 | 2.71 | Z | 12 1/2 | 68 3/4 | 21 3/4 | 26 | 28 3/4 |
| 22.1 | 0.870 | 69.4 | 2.73 | Z +1/2 | 12 3/4 | · | · | · | · |
| 22.3 | 0.879 | 70.2 | 2.76 | Z+1 | 13 | · | 22 | 27 | · |
| 22.6 | 0.890 | 71.0 | 2.80 | Z+1.5 | 13.5 | · | · | · | · |
| 22.7 | 0.893 | 71.3 | 2.81 | Z+2 | · | · | · | · | · |
| 22.9 | 0.902 | 72.0 | 2.83 | Z+2.5 | · | · | · | · | · |
| 23.0 | 0.908 | 72.5 | 2.85 | Z+3 | · | · | · | · | · |
| 23.3 | 0.915 | 73.0 | 2.87 | Z+3.5 | · | · | · | · | · |
| 23.5 | 0.924 | 73.7 | 2.90 | Z+4 | · | · | · | · | · |
| 23.6 | 0.927 | 74.0 | 2.91 | Z+4.5 | · | · | · | · | · |
| 23.9 | 0.940 | 75.0 | 2.95 | Z+5 | · | · | · | · | · |
| 24.3 | 0.955 | 76.2 | 3.00 | Z+6 | · | · | · | · | · |
Choosing the right size is very important when you are buying a ring for that special day. We have put together two types of ring size tools for measuring ring sizes of UK, USA, Germany & France for Europe. We will also send printed ring size guide and international ring size conversion chart. Order Free Ring Sizer now.
Fill in the form below to order your FREE RING SIZER.
We have put together two popular ring downloadable ring sizer tests. Simply download and print it 100%. It is very simple and easy to use and you can easily determine the ring size at home at your convenience. It will help you shop with confidence and you will be able to choose the right ring size.
Two Types of the most popular Ring Size Tests are provided in our Printable Ring Sizer.
Option A: The Paper Test
Cut our paper ring sizer tool and use it to estimate your ring size.
Option B: The Secret Test
Use the ring that you partner wears to find out the ring size. Simply place the ring on the right circle and determine ring size.
Please note that this is only a guide and will not take into account the style of the ring. For example, if you are choosing a ring with a deep band width, you may need a larger size.
When you’re finding out your ring size, don’t forget these useful tips:
The measurement of the ring can vary in cold and in hot temperature. It’s suggested to check the finger size at the end of the day when it is largest.
Wider ring feels tighter than thinner rings. Choose half a size bigger for ring width 4.0mm or more.
Ensure that the ring is secure and feels comfortable but that it can easily slide over the knuckle.
If your knuckle size is bigger then make sure you take a little bigger size to make sure it easily passes over the knuckle.
Printable ring size available online are not accurate and should only be used as a guide or estimate.
If you are planning a surprise proposal, then measuring the ring is challenging and exciting. Here are some ideas.
Check if they know or try and find out the ring size by pretending to wear the ring of your loved to see how it looks.
Often than not all you need to do is to use our ring size tool given in the next page of this guide and place the ring on the circle that fits perfectly to find out the ring size.
Try one of their rings on your finger and make a mark where it fits. Then use our ring sizer and measure the ring size. Avoid using string to measure finger size as the string could stretch or twist.
Don’t panic, many people do not get it right. Try to estimate or guess in the best possible way. At ABELINI, we offer one free resizing within 30 days. It means we will resize your ring or replace it free of cost as long as it is in pristine condition.
Please note that full eternity and bespoke rings cannot be resized.
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