A ring should fit snugly, yet comfortably. It should go on fairly easily, but come off with slight effort. You can determine your ring size fairly accurately by following the steps below and referring to the chart. 1/4 sizes are also available for the most precise fit. It should be noted that wider rings will fit more snugly than thinner bands. People with large knuckles sometimes have a problem with fit because rings that are big enough to go over the knuckle fit too loosely once they are beyond the knuckle. There are a number of remedies for these special cases. Please contact customer service for advise.

 

(Whiteflash uses American ring sizes for all reference)

Metric Japanese English American 37.8252 - A 1/2 38.4237 - A 1/2 3/4 39.0222 - B 1 39.6207 - B 1/2 1 1/4 40.2192 - C 1 1/2 40.8177 - C 1/2 1 3/4 41.4162 1 D 2 42.0147 2 D 1/2 2 1/4 42.6132 - E 2 1/2 43.2117 3 E 1/2 2 3/4 43.8102 4 F 3 44.4087 - F 1/2 3 1/4 45.0072 5 G 3 1/4 45.6057 - G 1/2 3 1/2 46.2042 6 H 3 3/4 46.8027 - H 1/2 4 47.4012 7 I 4 1/4 47.9997 8 I 1/2 4 1/2 48.5982 - J 4 3/4 49.1967 9 J 1/2 5 49.7952 10 K 5 1/4 50.3937 - K 1/2 5 1/2 50.9922 11 L 5 3/4 51.5907 - L 1/2 6 52.1892 12 M 6 1/4 52.7877 13 M 1/2 6 1/2 53.4660 - N 6 3/4 54.1044 14 N 1/2 7 54.7428 15 O 7 55.3812 - O 1/2 7 1/4 56.0196 16 P 7 1/2 56.6580 - P 1/2 7 3/4 57.2964 17 Q 8 57.9348 18 Q 1/2 8 1/4 58.5732 - R 8 1/2 59.2116 19 R 1/2 8 3/4 59.8500 20 S 9 60.4884 - S 1/2 9 1/4 61.1268 21 T 9 1/2 61.7652 22 T 1/2 9 3/4 62.4026 - U 10 63.0420 23 U 1/2 10 1/4 63.6804 24 V 10 1/2 64.3188 - V 1/2 10 3/4 64.8774 25 W 11 65.4759 - W 1/2 11 1/4 66.0744 26 X 11 1/2 66.6729 - X 1/2 11 3/4 67.2714 - Y 12 67.8699 - Y 1/2 12 1/4 68.4684 - Z 12 1/2