Mio Jewelry

Ring Size Finder

Use Printable Ring Size Guide and instructions below to determine your ring size. Prior to printing, ensure that page scaling is set to "none" on your print dialog box.


Measuring Your Finger

  • Measure your finger in warm temperatures at the end of the day. (Fingers are smaller in the early morning and when cold.)
  • If your knuckle is a lot larger than the base of your finger, use 2nd method in the Printable Ring Size Guide, except measure both the base of your finger and your knuckle and select a s ize in between the two.
  • Measure finger size 3 to 4 times to eliminate an erroneous reading.
  • If the ring falls between two sizes, order the larger size.
  • When considering a wide band, move up a size from your measurement, for comfort's sake.
  • Different countries have different ring-size systems . All sizes listed here are standard American sizes.
  • The average woman's ring size is about 6. The average man's ring size is about 10.
  • Your ring size will be about half a size larger on your primary hand (i.e., the hand you write with).

Buying the Ring as a Surprise

  • Ask your intended recipient's mother or friend if they know his/her finger size.
  • Borrow one of your intended recipient's rings (from the correct finger) and use 1st method in the Printable Ring Size Guide.

International Ring Size Chart


Circumference (mm) Diameter (mm) United States and Canada UK, Europe, and Australia Asia Switzerland
44.2 14.1 3 F 4 4
44.8 14.3 5
45.5 14.5 G
46.1 14.7 6
46.8 14.9 4 H 7
47.4 15.1
48.0 15.3 I 8
48.7 15.5 J 9
49.3 15.7 5 9
50.0 15.9 K 10
50.6 16.1 10
51.2 16.3 L 11½
51.9 16.5 6 11 12½
52.5 16.7 M 12
53.1 16.9 13 14
53.8 17.1 N
54.4 17.3 7 14 15½
55.1 17.5 O
55.7 17.7 15 16½
56.3 17.9 P
57.0 18.1 8 16 17½
57.6 18.3 Q
58.3 18.5 17
58.9 18.8 R 19
59.5 19.0 9 18
60.2 19.2 S 20½
60.8 19.4 19
61.4 19.6 T 21½
62.1 19.8 10 20
62.7 20.0 U 21
63.4 20.2 10½ 22 22½
64.0 20.4 V
64.6 20.6 11 23
65.3 20.8 W 25
65.9 21.0 11½ 24
66.6 21.2 X
67.2 21.4 12 25 27½
67.8 21.6 Y
68.5 21.8 12½ Z 26 28½
69.1 22.0
69.7 22.2 13 27
70.4 22.4 Z+1
71.0 22.6 13½