How to Determine the Correct Ring Size

How to Determine the Correct Ring Size

Use the chart below to determine the correct finger size. 

 

US Diam. Inch Diam. mm Circ. Inch Circ. mm UK Euro French German Japan Swiss
4 0.59 14.90 1.84 46.70 H  7 46 15 7 -
4.5 0.60 15.30 1.89 48.00 I  - - - 8 -
5 0.62 15.70 1.94 49.30 J 1/2 9 49 15 9 -
5.5 0.63 16.10 1.99 50.60 K 1/2 - - - 10 -
6 0.65 16.50 2.04 51.80 L 1/2 11 51 16 11 12.75
6.5 0.67 16.90 2.09 53.10 M 1/2 - - - 13 14.00
7 0.68 17.30 2.14 54.40 N 1/2 14 54 17 14 15.25
7.5 0.70 17.70 2.19 55.70 O 1/2 - - - 15 16.50
8 0.71 18.10 2.24 56.90 P 1/2 16 56 18 16 17.75
8.5 0.73 18.50 2.29 58.20 Q 1/2 - - - 17 -
9 0.75 18.90 2.34 59.50 R 1/2 19 59 19 18 -
9.5 0.76 19.40 2.39 60.80 S 1/2 - - - 19 -
10 0.78 19.80 2.44 62.10 T 1/2 21 61 20 20 -
10.5 0.79 20.20 2.49 63.30 U 1/2 - - - 22 22.75
11 0.81 20.60 2.54 64.60 V 1/2 24 64 20 23 -
11.5 0.83 21.00 2.59 65.90 W 1/2 - - - 24 -
12 0.84 21.40 2.64 67.20 X 1/2 26 67 21 25 27.50
12.5 0.86 21.80 2.69 68.40 Z - - - 26 28.75
13 0.87 22.20 2.74 69.70 - 29 - 22 27 -
13.5 0.89 22.60 2.79 71.00 - - - - - -
14 0.91 23.00 2.85 72.30 Z3 31 - - - -
14.5 0.92 23.40 2.90 73.50 Z4 - - - - -
15 0.94 23.80 2.94 74.80 - - - - - -
15.5 0.95 24.20 3.00 76.10 - - - - - -