📏 Ring Size Chart
AtPerry's uses US Ring Sizes.
Select a ring size in one category, the rest will change to match.
USA size Diam. inch. Diam. mm Circum. mm
British French German Japanese Swiss
Follow this Ring Size Chart to convert your Local Ring Size to USA Ring Size

International Ring Size Table

AtPerry's Size
(US / Canada)

 UK / Australia / South Africa France Germany / Russia / Ukraine / Asia India / China / Japan / South America / Turkey / Israel Italy / Spain / Netherlands / Switzerland
½ A --- --- --- ---
1 B --- --- 1 ---
1 1/2 C --- --- --- ---
2 D 41 1/2 13 1/4 2 1 1/2
2 1/4 D-½ 42 1/8 13 1/2 --- ---
2 1/2 E 42 3/4 13 3/4 3 2 3/4
2 3/4 E-½ 43 3/8 --- --- 3 3/8
3 F 44 14 4 4
3 1/4 F-½ 44 5/8 14 1/4 ---

4 5/8
3 1/2 G 45 1/4 14 1/2 5 5 1/4
3 3/4 G-½ 45 7/8 14 3/4 6 5 7/8
4 H 46 1/2 15 7 6 1/2
4 1/4 H-½ 47 1/8 --- --- 7 1/8
4 1/2 I 47 3/4 15 1/4 8 7 3/4
4 3/4 J 48 3/8 15 1/2 --- 8 3/8
5 J-½ 49 15 3/4 9 9
5 1/4 K 49 5/8 16 --- 9 5/8
5 1/2 K-½ 50 1/4 16 1/4 10 10 1/4
5 3/4 L 50 7/8 --- 11 10 7/8
6 L-½ 51 1/2 16 1/2 12 11 1/2
6 1/4 M 52 1/8 16 3/4 --- 12 1/8
6 1/2 M-½ 52 3/4 17 13 12 3/4
6 3/4 N 53 3/8 --- --- 13 3/8
7 O 54 17 1/4 14 14
7 1/4 O-½ 54 5/8 17 1/2 --- 14 5/8
7 1/2 P 55 1/4 17 3/4 15 15 1/4
7 3/4 P-½ 55 7/8 18 --- 15 7/8
8 Q 56 1/2 --- 16 16 1/2
8 1/4 Q-½ 57 1/8 18 1/4 --- 17 1/8
8 1/2 R 57 3/4 18 1/2 17 17 3/4
8 3/4 R-½ 58 3/8 18 3/4 --- 18 3/8
9 S 59 19 18 19
9 1/4 S-½ 59 5/8 19 1/4 --- 19 5/8
9 1/2 --- 60 1/4 19 1/2 19 20 1/4
9 3/4 T 60 7/8 --- --- 20 7/8
10 T-½ 61 1/2 19 3/4 20 21 1/2
10 1/4 U 62 1/8 20 21 22 1/8
10 1/2 U-½ 62 3/4 --- 22 22 3/4
10 3/4 V 63 3/8 20 1/2 --- 23 3/8
11 V-½ 64 20 3/4 23 24
11 1/4 W 64 5/8 --- --- 24 5/8
11 1/2 W-½ 65 1/4 21 24 25 1/4
11 3/4 X 65 7/8 21 1/4 --- 25 7/8
12 Y 66 1/2 21 1/2 25 26 1/2
12 1/4 Y-½ 67 1/8 --- --- 27 1/8
12 1/2 Z 67 3/4 21 3/4 26 27 3/4
12 3/4 Z-½ 68 3/8 --- --- 28 3/8
13 --- 69 22 27 29