Ring Size Chart ( US & UK )

Ring Size Chart (U.S. & U.K.)

Size (U.S.) Size (U.K.) Inside Diameter (mm) Inside Circumference (mm)
3 F 14.0 mm 44.2 mm
4 H 14.8 mm 46.8 mm
5 J 1/2 15.6 mm 49.3 mm
6 L 1/2 16.4 mm 51.9 mm
7 N 1/2 17.3 mm 54.4 mm
8 P 1/2 18.1 mm 57.0 mm
9 R 1/2 18.9 mm 59.5 mm
10 T 1/2 19.8 mm 62.1 mm
11 V 1/2 20.6 mm 64.6 mm
12 Y 21.4 mm 67.2 mm
13 Z+1 22.2 mm 69.7 mm