Ring Size Chart

Ring Size Guide

International Ring Sizes

Size in MM US & Canada Great Britain Japan France Switzerland Germany
44.1 3 F 4 44 4 14
45.4 3 1/2 G 5 45 1/4 5 1/4 14 1/2
46.7 4 H 1/2 7 46 1/2 6 1/2 15
48.0 4 1/2 I 1/2 8 47 3/4 7 3/4 15 1/2
49.2 5 J 1/2 9 49 9 15 3/4
50.5 5 1/2 K 1/2 10 50 1/4 10 1/4 16 1/4
51.8 6 L 1/2 12 51 1/2 11 1/2 16 1
53.1 6 1/2 M 1/2 13 52 3/4 12 3/4 17
54.3 7 O 14 54 14 17 1/4
55.6 7 1/2 P 15 55 1/4 15 1/4 17 3/4
56.9 8 Q 16 56 1/2 16 1/2 18
58.2 8 1/2 R 17 57 3/4 17 3/4 18 1/2
59.4 9 S 18 59 19 19
60.7 9 1/2 -- 19 60 1/4 20 1/4 19 1/2
62.0 10 T 1/2 20 61 1/2 21 1/2 20
63.3 10 1/2 U 1/2 22 62 3/4 22 3/4 20 1/2
64.5 11 V 1/2 23

Tips to Measure Your Ring Size

When measuring your ring size, keep the following tips in mind:

  • Avoid measuring your fingers when they are cold, as they tend to be smaller.
  • Avoid measuring your fingers on very hot summer days, as they may be swollen.
  • If you have large knuckles, it's recommended to choose a slightly larger size to ensure a comfortable fit.
  • Measure your fingers at the end of the day, as they are likely to be the largest at that time.
  • Note that the ring size may vary between each hand, so measure the specific finger on which you plan to wear the ring.
  • For rings with stones, it is important to measure the size as accurately as possible to ensure the ring fits properly and doesn't spin around.

Advice for Buying a Ring as a Gift

Buying a ring as a gift can be a challenge when you are unsure of the correct ring size. Here are some suggestions:

  • Ask your partner, friends, or family of the person if they know the ring size.
  • Borrow one of the person's rings (on the correct finger) and measure it using the methods described above.
  • Consider choosing a ring that is adjustable in size to accommodate variations.