Finding your ring size is critical to make a ring that fits your finger. You have a few ways to figure out. Ring sizes can be measured with a paper, plastic, or metal ring sizer (as a gauge) or by measuring the inner diameter of a ring.
Buy Ring Stick Online

Ring sticks are tools used to measure the inner size of a ring, and are typically made from plastic, delrin, wood, aluminum, or of multiple materials.
Request a Free Ring Sizer

If you live in the US, we can send you a complimentary ring sizer so that you can accurately measure your ring size at home. Ring sizer will arrive within five to seven business days. You can easily measure your own finger sizes from 0-17 with accurate full, half, and quarter sizes.
International Ring Size Chart
Inside Diameter | Inside Circumference | Sizes | ||||||
---|---|---|---|---|---|---|---|---|
(inch) | (mm) | (inch) | (mm) ISO (Continental Europe) |
United States, Canada and Mexico |
United Kingdom, Ireland, Australia, South Africa and New Zealand |
East Asia (China, Japan, South Korea), South America |
India | Italy, Spain, Netherlands, Switzerland |
0.458 | 11.63 | 1.44 | 36.5 | 0 | ||||
0.466 | 11.84 | 1.46 | 37.2 | ¼ | ||||
0.474 | 12.04 | 1.49 | 37.8 | ½ | A | |||
0.482 | 12.24 | 1.51 | 38.5 | ¾ | A ½ | |||
0.49 | 12.45 | 1.54 | 39.1 | 1 | B | 1 | ||
0.498 | 12.65 | 1.56 | 39.7 | 1 ¼ | B ½ | |||
0.506 | 12.85 | 1.59 | 40.4 | 1 ½ | C | 0.4 | ||
0.514 | 13.06 | 1.61 | 41.0 | 1 ¾ | C ½ | 1 | 1 | |
0.522 | 13.26 | 1.64 | 41.7 | 2 | D | 2 | 2 | 1.7 |
0.53 | 13.46 | 1.67 | 42.3 | 2 ¼ | D ½ | 2.3 | ||
0.538 | 13.67 | 1.69 | 42.9 | 2 ½ | E | 3 | 3 | 2.9 |
0.546 | 13.87 | 1.72 | 43.6 | 2 ¾ | E ½ | 4 | 3.6 | |
0.554 | 14.07 | 1.74 | 44.2 | 3 | F | 4 | 4.2 | |
0.562 | 14.27 | 1.77 | 44.8 | 3 ¼ | F ½ | 5 | 5 | 4.8 |
0.57 | 14.48 | 1.79 | 45.5 | 3 ½ | G | 5.5 | ||
0.578 | 14.68 | 1.82 | 46.1 | 3 ¾ | G ½ | 6 | 6 | 6.1 |
0.586 | 14.88 | 1.84 | 46.8 | 4 | H | 7 | 6.8 | |
0.594 | 15.09 | 1.87 | 47.4 | 4 ¼ | H ½ | 7 | 7.4 | |
0.602 | 15.29 | 1.89 | 48.0 | 4 ½ | I | 8 | 8 | 8 |
0.61 | 15.49 | 1.92 | 48.7 | 4 ¾ | J | 9 | 8.7 | |
0.618 | 15.70 | 1.94 | 49.3 | 5 | J ½ | 9 | 9.3 | |
0.626 | 15.90 | 1.97 | 50.0 | 5 ¼ | K | 10 | 10 | |
0.634 | 16.10 | 1.99 | 50.6 | 5 ½ | K ½ | 10 | 10.6 | |
0.642 | 16.31 | 2.02 | 51.2 | 5 ¾ | L | 11 | 11.2 | |
0.65 | 16.51 | 2.04 | 51.9 | 6 | L ½ | 11 | 12 | 11.9 |
0.658 | 16.71 | 2.07 | 52.5 | 6 ¼ | M | 12 | 12.5 | |
0.666 | 16.92 | 2.09 | 53.1 | 6 ½ | M ½ | 13 | 13 | 13.1 |
0.674 | 17.12 | 2.12 | 53.8 | 6 ¾ | N | 13.8 | ||
0.682 | 17.32 | 2.14 | 54.4 | 7 | N ½ | 14 | 14 | 14.4 |
0.69 | 17.53 | 2.17 | 55.1 | 7 ¼ | O | 15 | 15.1 | |
0.698 | 17.73 | 2.19 | 55.7 | 7 ½ | O ½ | 15 | 15.7 | |
0.706 | 17.93 | 2.22 | 56.3 | 7 ¾ | P | 16 | 16.3 | |
0.714 | 18.14 | 2.24 | 57.0 | 8 | P ½ | 16 | 17 | 17 |
0.722 | 18.34 | 2.27 | 57.6 | 8 ¼ | P ¾ | 17.6 | ||
0.73 | 18.54 | 2.29 | 58.3 | 8 ½ | Q ¼ | 17 | 18 | 18.3 |
0.738 | 18.75 | 2.32 | 58.9 | 8 ¾ | R | 19 | 18.9 | |
0.746 | 18.95 | 2.34 | 59.5 | 9 | R ½ | 18 | 19.5 | |
0.754 | 19.15 | 2.37 | 60.2 | 9 ¼ | S | 20 | 20.2 | |
0.762 | 19.35 | 2.39 | 60.8 | 9 ½ | S ½ | 19 | 21 | 20.8 |
0.77 | 19.56 | 2.42 | 61.4 | 9 ¾ | T | 21.4 | ||
0.778 | 19.76 | 2.44 | 62.1 | 10 | T ½ | 20 | 22 | 22.1 |
0.786 | 19.96 | 2.47 | 62.7 | 10 ¼ | U | 21 | 23 | 22.7 |
0.794 | 20.17 | 2.49 | 63.4 | 10 ½ | U ½ | 22 | 23.4 | |
0.802 | 20.37 | 2.52 | 64.0 | 10 ¾ | V | 24 | 24 | |
0.81 | 20.57 | 2.54 | 64.6 | 11 | V ½ | 23 | 25 | 24.6 |
0.818 | 20.78 | 2.57 | 65.3 | 11 ¼ | W | 25.3 | ||
0.826 | 20.98 | 2.59 | 65.9 | 11 ½ | W ½ | 24 | 26 | 25.9 |
0.834 | 21.18 | 2.62 | 66.6 | 11 ¾ | X | 26.6 | ||
0.842 | 21.39 | 2.65 | 67.2 | 12 | X ½ | 25 | 27 | 27.2 |
0.85 | 21.59 | 2.67 | 67.8 | 12 ¼ | Y | 28 | 27.8 | |
0.858 | 21.79 | 2.70 | 68.5 | 12 ½ | Y ½ | 26 | 28.5 | |
0.866 | 22.00 | 2.72 | 69.1 | 12 ¾ | Z | 29 | 29.1 | |
0.874 | 22.20 | 2.75 | 69.7 | 13 | Z ½ | 27 | 30 | 29.7 |
0.882 | 22.40 | 2.77 | 70.4 | 13 ¼ | Z1 | 30.4 | ||
0.89 | 22.61 | 2.80 | 71.0 | 13 ½ | 31 | 31 | ||
0.898 | 22.81 | 2.82 | 71.7 | 13 ¾ | Z2 | 32 | 31.7 | |
0.906 | 23.01 | 2.85 | 72.3 | 14 | Z3 | 32.3 | ||
0.914 | 23.22 | 2.87 | 72.9 | 14 ¼ | 33 | 32.9 | ||
0.922 | 23.42 | 2.90 | 73.6 | 14 ½ | Z4 | 33.6 | ||
0.93 | 23.62 | 2.92 | 74.2 | 14 ¾ | 34 | 34.2 | ||
0.938 | 23.83 | 2.95 | 74.8 | 15 | 35 | 34.8 | ||
0.946 | 24.03 | 2.97 | 75.5 | 15 ¼ | 35.5 | |||
0.954 | 24.23 | 3.00 | 76.1 | 15 ½ | 36 | 36.1 | ||
0.962 | 24.43 | 3.02 | 76.8 | 15 ¾ | 36.8 | |||
0.97 | 24.64 | 3.05 | 77.4 | 16 | 37 | 37.4 |