3. Ring Size
- Before you buy a ring, you need to know your ring size. It is very simple to measure your ring size. Just take a soft sewing measure (meter), a strip of paper or a simple cord and pull tightly to get the most accurate reading. Remember to measure across the knuckle of your chosen finger since this is the widest part of your finger. Measure your finger in the evening, when it is wider.
- If you know your ring size in inches or millimeters, check our ring size conversion chart to find out what ring size you need to order.
RING SIZE CONVERSION CHART (International Ring Sizes)
| Inside Diameter (mm) | Inside Diameter (inch) | Inside Circumference (mm) | Inside Circumference (inch) | USA & Canada | UK, AU & NZ | European |
| 11.6 | 0.458 | 36.5 | 1.438 | |||
| 11.8 | 0.466 | 37.2 | 1.463 | |||
| 12 | 0.474 | 37.8 | 1.488 | A | ||
| 12.2 | 0.482 | 38.4 | 1.513 | A 1/2 | ||
| 12.4 | 0.49 | 39.1 | 1.539 | 1 | B | |
| 12.6 | 0.498 | 39.7 | 1.564 | 1 1/4 | B 1/2 | |
| 12.9 | 0.506 | 40.4 | 1.589 | 1 1/2 | C | |
| 13.1 | 0.514 | 41 | 1.614 | 1 3/4 | C 1/2 | |
| 13.3 | 0.522 | 41.6 | 1.639 | 2 | D | 1.5 |
| 13.5 | 0.53 | 42.3 | 1.664 | 2 1/4 | D 1/2 | |
| 13.7 | 0.538 | 42.9 | 1.689 | 2 1/2 | E | 2.75 |
| 13.9 | 0.546 | 43.5 | 1.714 | 2 3/4 | E 1/2 | |
| 14.1 | 0.554 | 44.2 | 1.74 | 3 | F | 4 |
| 14.3 | 0.562 | 44.8 | 1.765 | 3 1/4 | F 1/2 | 5.25 |
| 14.5 | 0.57 | 45.5 | 1.79 | 3 1/2 | G | |
| 14.7 | 0.578 | 46.1 | 1.815 | 3 3/4 | G 1/2 | 6.5 |
| 14.9 | 0.586 | 46.7 | 1.84 | 4 | H | |
| 15.1 | 0.594 | 47.4 | 1.865 | 4 1/4 | H 1/2 | 7.75 |
| 15.3 | 0.602 | 48 | 1.89 | 4 1/2 | I | |
| 15.5 | 0.61 | 48.7 | 1.915 | 4 3/4 | J | 9 |
| 15.7 | 0.618 | 49.3 | 1.941 | 5 | J 1/2 | |
| 15.9 | 0.626 | 49.9 | 1.966 | 5 1/4 | K | 10 |
| 16.1 | 0.634 | 50.6 | 1.991 | 5 1/2 | K 1/2 | |
| 16.3 | 0.642 | 51.2 | 2.016 | 5 3/4 | L | 11.75 |
| 16.5 | 0.65 | 51.8 | 2.041 | 6 | L 1/2 | 12.75 |
| 16.7 | 0.658 | 52.5 | 2.066 | 6 1/4 | M | 12.75 |
| 16.9 | 0.666 | 53.1 | 2.091 | 6 1/2 | M 1/2 | 14 |
| 17.1 | 0.674 | 53.8 | 2.116 | 6 3/4 | N | |
| 17.3 | 0.682 | 54.4 | 2.141 | 7 | N 1/2 | 15.25 |
| 17.5 | 0.69 | 55 | 2.167 | 7 1/4 | O | |
| 17.7 | 0.698 | 55.7 | 2.192 | 7 1/2 | O 1/2 | 16.5 |
| 17.9 | 0.706 | 56.3 | 2.217 | 7 3/4 | P | |
| 18.1 | 0.714 | 56.9 | 2.242 | 8 | P 1/2 | 17.75 |
| 18.3 | 0.722 | 57.6 | 2.267 | 8 1/4 | Q | |
| 18.5 | 0.73 | 58.2 | 2.292 | 8 1/2 | Q 1/2 | |
| 18.7 | 0.738 | 58.9 | 2.317 | 8 3/4 | R | 19 |
| 18.9 | 0.746 | 59.5 | 2.342 | 9 | R 1/2 | |
| 19.2 | 0.754 | 60.1 | 2.368 | 9 1/4 | S | 20.25 |
| 19.4 | 0.762 | 60.8 | 2.393 | 9 1/2 | S 1/2 | |
| 19.6 | 0.77 | 61.4 | 2.418 | 9 3/4 | T | 21.5 |
| 19.8 | 0.778 | 62.1 | 2.443 | 10 | T 1/2 | |
| 20 | 0.786 | 62.7 | 2.468 | 10 1/4 | U | |
| 20.2 | 0.794 | 63.3 | 2.493 | 10 1/2 | U 1/2 | 22.75 |
| 20.4 | 0.802 | 64 | 2.518 | 10.3/4 | V | |
| 20.6 | 0.81 | 64.6 | 2.543 | 11 | V 1/2 | |
| 20.8 | 0.818 | 65.2 | 2.569 | 11 1/4 | W | 25 |
| 21 | 0.826 | 65.9 | 2.594 | 11 1/2 | W 1/2 | |
| 21.2 | 0.834 | 66.5 | 2.619 | 11 3/4 | X | |
| 21.4 | 0.842 | 67.2 | 2.644 | 12 | X 1/2 | 27.5 |
| 21.6 | 0.85 | 67.8 | 2.669 | 12 1/4 | Y | |
| 21.8 | 0.858 | 68.4 | 2.694 | 12 1/2 | Z | 28.75 |
| 22 | 0.866 | 69.1 | 2.719 | 12 3/4 | Z 1/2 | |
| 22.2 | 0.874 | 69.7 | 2.744 | 13 | ||
| 22.4 | 0.882 | 70.3 | 2.769 | 13 1/4 | Z1 | |
| 22.6 | 0.89 | 71 | 2.795 | 13 1/2 | ||
| 22.8 | 0.898 | 71.6 | 2.82 | 13 3/4 | Z2 | |
| 23 | 0.906 | 72.3 | 2.845 | 14 | Z3 | |
| 23.2 | 0.914 | 72.9 | 2.87 | 14 1/4 | ||
| 23.4 | 0.922 | 73.5 | 2.895 | 14 1/2 | Z4 | |
| 23.6 | 0.93 | 74.2 | 2.92 | 14 3/4 | ||
| 23.8 | 0.938 | 74.8 | 2.945 | 15 | ||
| 24 | 0.946 | 75.4 | 2.97 | 15 1/4 | ||
| 24.2 | 0.954 | 76.1 | 2.996 | 15 1/2 | ||
| 24.4 | 0.962 | 76.7 | 3.021 | 15 3/4 | ||
| 24.6 | 0.97 | 77.4 | 3.046 | 16 |