Ring Size

International Ring Size Conversion Chart

Sizes Diameter
(Inside)		 Circumference
(Inside)
# China USA
Canada		 UK
Australia		 Europe mm inches mm inches
#03 3 2.5 E 43 13.7 0.54 42.9 1.69
#04 4 3 F 44 14.0 0.55 44.0 1.73
#05 5 3.5 G 45 14.3 0.56 45.0 1.77
#06 6 3.5-4 G-H 46 14.7 0.58 46.1 1.81
#07 7 4-4.5 H-I 47 15.0 0.59 47.1 1.85
#08 8 4.5-5 I-J 48 15.3 0.60 48.0 1.89
#09 9 5 J 49 15.7 0.62 49.2 1.93
#10 10 5.5 K 50 16.0 0.63 50.3 1.98
#11 11 6 L 51 16.3 0.64 51.3 2.02
#12 12 6.5 L-M 52 16.7 0.66 52.4 2.06
#13 13 6.5-7 M-N 53 17.0 0.67 53.4 2.10
#14 14 7-7.5 N-O 54 17.3 0.68 54.5 2.14
#15 15 7.5-8 O-P 55 17.7 0.70 55.5 2.18