Finding your ring size
Print the above size tool and cut it out of the paper. Wrap it around you desired finger and determine your size by the number the arrow next to the "A" is pointed to. Use the chart below for conversion of US and Canadian number sizes to the "Wheat sheaf" system of letter sizes used in Ireland, U.K. Australia, ect. Diameters and circumferences are also given in both inches and millimeters. Please note that these measurements are exact for the American system and approximate for the other sizing scales, since the intervals in each system do not correspond exactly. Ring sizing gauges and finger gauges as well as published charts do not always agree. Add to this that there are two conflicting methods of reading ring gauges so it is quite common for ring sizes to vary slightly from one workshop or jeweler to another. The ring sizing information presented here is the result of a conscientious study and comparison of various sources and is consistent with the instruments and measuring technique that we use in our workshop. |
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Inside | Inside | Inside | Inside | Number Sizes | Wheat Sheaf | ||
Diameter | Diameter | Circumference | Circumference | US/Canada | British | Japanese | Swiss |
(inches) | (mm) | (inches) | (mm) | Standard | Irish | Equivalent | Equivalent |
|
Australian | ||||||
Equivalent | |||||||
0.458 | 11.6 | 1.438 | 36.5 | 0 | |||
0.466 | 11.8 | 1.463 | 37.2 | 1/4 | |||
0.474 | 12.0 | 1.488 | 37.8 | 1/2 | A | ||
0.482 | 12.2 | 1.513 | 38.4 | 3/4 | A 1/2 | ||
0.490 | 12.4 | 1.539 | 39.1 | 1 | B | 1 | |
0.498 | 12.6 | 1.564 | 39.7 | 1 1/4 | B 1/2 | ||
0.506 | 12.9 | 1.589 | 40.4 | 1 1/2 | C | ||
0.514 | 13.1 | 1.614 | 41.0 | 1 3/4 | C 1/2 | ||
0.522 | 13.3 | 1.639 | 41.6 | 2 | D | 2 | 1.50 |
0.530 | 13.5 | 1.664 | 42.3 | 2 1/4 | D 1/2 | ||
0.538 | 13.7 | 1.689 | 42.9 | 2 1/2 | E | 3 | 2.75 |
0.546 | 13.9 | 1.714 | 43.5 | 2 3/4 | E 1/2 | ||
0.554 | 14.1 | 1.740 | 44.2 | 3 | F | 4 | 4.00 |
0.562 | 14.3 | 1.765 | 44.8 | 3 1/4 | F 1/2 | 5 | 5.25 |
0.570 | 14.5 | 1.790 | 45.5 | 3 1/2 | G | ||
0.578 | 14.7 | 1.815 | 46.1 | 3 3/4 | G 1/2 | 6 | 6.50 |
0.586 | 14.9 | 1.840 | 46.7 | 4 | H | 7 | |
0.594 | 15.1 | 1.865 | 47.4 | 4 1/4 | H 1/2 | 7.75 | |
0.602 | 15.3 | 1.890 | 48.0 | 4 1/2 | I | 8 | |
0.610 | 15.5 | 1.915 | 48.7 | 4 3/4 | J | 9.00 | |
0.618 | 15.7 | 1.941 | 49.3 | 5 | J 1/2 | 9 | |
0.626 | 15.9 | 1.966 | 49.9 | 5 1/4 | K | 10.00 | |
0.634 | 16.1 | 1.991 | 50.6 | 5 1/2 | K 1/2 | 10 | |
0.642 | 16.3 | 2.016 | 51.2 | 5 3/4 | L | 11.75 | |
0.650 | 16.5 | 2.041 | 51.8 | 6 | L 1/2 | 11 | 12.75 |
0.658 | 16.7 | 2.066 | 52.5 | 6 1/4 | M | 12 | |
0.666 | 16.9 | 2.091 | 53.1 | 6 1/2 | M 1/2 | 13 | 14.00 |
0.674 | 17.1 | 2.116 | 53.8 | 6 3/4 | N | ||
0.682 | 17.3 | 2.141 | 54.4 | 7 | N 1/2 | 14 | 15.25 |
0.690 | 17.5 | 2.167 | 55.0 | 7 1/4 | O | ||
0.698 | 17.7 | 2.192 | 55.7 | 7 1/2 | O 1/2 | 15 | 16.50 |
0.706 | 17.9 | 2.217 | 56.3 | 7 3/4 | P | ||
0.714 | 18.1 | 2.242 | 56.9 | 8 | P 1/2 | 16 | 17.75 |
0.722 | 18.3 | 2.267 | 57.6 | 8 1/4 | Q | ||
0.730 | 18.5 | 2.292 | 58.2 | 8 1/2 | Q 1/2 | 17 | |
0.738 | 18.7 | 2.317 | 58.9 | 8 3/4 | R | 19 | |
0.746 | 18.9 | 2.342 | 59.5 | 9 | R 1/2 | 18 | |
0.754 | 19.2 | 2.368 | 60.1 | 9 1/4 | S | 20.25 | |
0.762 | 19.4 | 2.393 | 60.8 | 9 1/2 | S 1/2 | 19 | |
0.770 | 19.6 | 2.418 | 61.4 | 9 3/4 | T | 21.5 | |
0.778 | 19.8 | 2.443 | 62.1 | 10 | T 1/2 | 20 | |
0.786 | 20.0 | 2.468 | 62.7 | 10 1/4 | U | 21 | |
0.794 | 20.2 | 2.493 | 63.3 | 10 1/2 | U 1/2 | 22 | 22.75 |
0.802 | 20.4 | 2.518 | 64.0 | 10 3/4 | V | ||
0.810 | 20.6 | 2.543 | 64.6 | 11 | V 1/2 | 23 | |
0.818 | 20.8 | 2.569 | 65.2 | 11 1/4 | W | 25 | |
0.826 | 21.0 | 2.594 | 65.9 | 11 1/2 | W 1/2 | 24 | |
0.834 | 21.2 | 2.619 | 66.5 | 11 3/4 | X | ||
0.842 | 21.4 | 2.644 | 67.2 | 12 | X 1/2 | 25 | 27.50 |
0.850 | 21.6 | 2.669 | 67.8 | 12 1/4 | Y | ||
0.858 | 21.8 | 2.694 | 68.4 | 12 1/2 | Z | 26 | 28.75 |
0.866 | 22.0 | 2.719 | 69.1 | 12 3/4 | Z 1/2 | ||
0.874 | 22.2 | 2.744 | 69.7 | 13 | 27 | ||
0.882 | 22.4 | 2.769 | 70.3 | 13 1/4 | Z1 | ||
0.890 | 22.6 | 2.795 | 71.0 | 13 1/2 | |||
0.898 | 22.8 | 2.820 | 71.6 | 13 3/4 | Z2 | ||
0.906 | 23.0 | 2.845 | 72.3 | 14 | Z3 | ||
0.914 | 23.2 | 2.870 | 72.9 | 14 1/4 | |||
0.922 | 23.4 | 2.895 | 73.5 | 14 1/2 | Z4 | ||
0.930 | 23.6 | 2.920 | 74.2 | 14 3/4 | |||
0.938 | 23.8 | 2.945 | 74.8 | 15 | |||
0.946 | 24.0 | 2.970 | 75.4 | 15 1/4 | |||
0.954 | 24.2 | 2.996 | 76.1 | 15 1/2 | |||
0.962 | 24.4 | 3.021 | 76.7 | 15 3/4 |