Size Guide

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 while supplies last, allowing you to accurately measure your ring size at home. The ring sizer will arrive within five to seven business days, and you can easily measure your finger size from 0 to 17, including full, half, and quarter sizes. 

*Please note, our ring sizers are out of stock. For next day free delivery, order on Amazon for $3.

 

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

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