International Ring Size Chart

Ring size chart visual

In mm

NILA BLISS size (USA & Canada) DIAMETER
(mm)
CIRCUM-FERENCE
(mm) (France)
SPAIN size UK size (Ireland, Australia & New Zeland) GERMAN size (Russia) SWISS size JAPANESE size - (China, India & South Africa) Brazil size
4 1/2 15.27 47.8 8 I 1/2 15 1/4 8 8 12
5 15.7 49 9 J 1/2 15 3/4 9 1/4 9 13
5 1/2 16.1 50.2 10 L 16 9 3/4 11 14
6 16.51 51.5 12 M 16 1/2 12 3/4 12 15
6 1/2 16.92 52.8 13 N 17 14 13 16
7 17.35 54 14 O 17 1/4 15 1/4 14 17
7 1/2 17.75 55.3 15 P 17 3/4 16 1/2 15 19
8 18.19 56.6 17 Q 18 17 3/4 16 20
8 1/2 18.53 57.8 18 Q 1/2 18 1/2 18 17 21
9 18.89 59.1 19 R 1/2 19 19 18 22
9 1/2 19.41 60.3 21 S 1/2 19 1/2 21 19 24
10 19.84 61.6 22 T 1/2 20 22 20 25


How to find out your ring size if you don't know it?


Op. 1: DIAMETER Measurement:

  • The easiest way to find the right size is to measure the diameter (from the inside) of a ring that fits you.
  • Then check that DIAMETER equivalency to NILA BLISS size (which is the same as the USA & CANADA sizes)

Op. 2: CIRCUMFERENCE Measurement:

  • Wrap a thin piece of paper (or a string) around the finger you are measuring for the size.
  • Mark where the end of that piece of paper meets the other side.
  • Measure the length to the mark, this will tel you the circumference size.
  • Then check that Circumference equivalency to the NILA BLISS size (which is the same as the USA & CANADA sizes)

 

For ADJUSTABLE rings:

These normally come in a diameter of 17mm - Size 6 1/2, and you will be able to adapt it to your size going up or down from there.

TIPS:

Remember that in summer or hot weather, your fingers can widen up.