HOW TO MEASURE YOUR RING SIZE
This guide offers two methods of measuring for your ring size. If you already own a ring or have managed to obtain one from the person that you are buying the ring for, simply measure the inside diameter of the ring and match the size to the chart. If you don't have a ring, simply measure the intended ring finger and match the measurement to the chart.
You can also use the chart below to convert various ring sizes into US ring size.
Tips for measuring your ring
- If using a ring to measure, ensure that you select a ring that fits the intended ring finger. If measuring a finger, measure towards the end of the day when the finger is warm.
- When your fingers are cold there can be up to half a size difference. Rings that have a thicker band feel tighter than those that have a thinner band. If buying a thicker band, look to buy a full ring size bigger to allow room for movement.
- Your ring should always fit comfortably on your finger without any fear of it falling off.
- If the measurement of the interior diameter you took results in between sizes, you should select the largest of the two.
| Finger Circumference (mm) | UK Size | EU Size | US Size |
|---|---|---|---|
| 37.8 | A | --- | 1/2 |
| 39.1 | B | --- | 1 |
| 40.4 | C | --- | 1 1/2 |
| 41.7 | D | 41 1/2 | 2 |
| 42.1 | D 1/2 | 42 1/8 | 2 1/4 |
| 42.9 | E | 42 3/4 | 2 1/2 |
| 43.4 | E 1/2 | 43 3/8 | 2 3/4 |
| 44.2 | F | 44 | 3 |
| 44.4 | F 1/2 | 44 5/8 | 3 1/4 |
| 45.5 | G | 45 1/4 | 3 1/2 |
| 45.7 | G 1/2 | 45 7/8 | 3 3/4 |
| 46.8 | H | 46 1/2 | 4 |
| 46.8 | H 1/2 | 47 1/8 | 4 1/4 |
| 48.0 | I | 47 3/4 | 4 1/2 |
| 48.7 | J | 48 3/8 | 4 3/4 |
| 50.0 | K | 49 5/8 | 5 1/4 |
| 50.2 | K 1/2 | 50 1/4 | 5 1/2 |
| 51.2 | L | 50 7/8 | 5 3/4 |
| 51.5 | L 1/2 | 51 1/2 | 6 |
| 51.9 | M | 52 1/8 | 6 1/4 |
| 52.5 | M 1/2 | 52 3/4 | 6 1/2 |
| 53.1 | N | 53 5/8 | 6 3/4 |
| 54.5 | O | 54 | 7 |
| 54.8 | O 1/2 | 54 5/8 | 7 1/4 |
| 55.7 | P | 55 1/4 | 7 1/2 |
| 56.4 | P 1/2 | 55 7/8 | 7 3/4 |
| 57.1 | Q | 56 1/2 | 8 |
| 57.6 | Q 1/2 | 57 1/8 | 8 1/4 |
| 58.4 | R | 57 3/4 | 8 1/2 |
| 59 | R 1/2 | 58 3/8 | 8 3/4 |
| 60 | S | 59 | 9 |
| 60.6 | S 1/2 | 59 5/8 | 9 1/4 |
| 61.3 | T | 60 7/8 | 9 3/4 |
| 62.3 | T 1/2 | 61 1/2 | 10 |
| 62.7 | U | 62 1/8 | 10 1/4 |
| 63.4 | U 1/2 | 62 3/4 | 10 1/2 |
| 63.8 | V | 63 3/8 | 10 3/4 |
| 64.9 | V 1/2 | 64 | 11 |
| 65.3 | W | 64 5/8 | 11 1/4 |
| 65.7 | W 1/2 | 65 1/4 | 11 1/2 |
| 66.5 | X | 65 7/8 | 11 3/4 |
| 67.5 | Y | 66 1/2 | 12 |
| 68.1 | Y 1/2 | 67 1/2 | 12 1/4 |
| 68.7 | Z | 67 3/4 | 12 1/2 |
| 69.4 | Z 1/2 | 68 3/8 | 12 3/4 |
