Ring Size Guide

If you are in any doubt as to what your ring size is then a quick way to find out is to simply wrap a piece of cotton around your ring finger and then measure the length of the cotton against a ruler to give your ring size in millimeters. Use the ring size chart below to see what your corresponding UK and US ring size is or alternatively simply visit your local jeweller with an exisitng ring and have them size it or if the purchase is for yourself simply have them message your finger.

Easy to use UK and USA ring size converter

Circumference (mm)UK sizeUSA size
46.5 mmH 1/24
48mmI 1/24 1/2
49mmJ 1/25
50.5mmL 1/25 1/2
52mmM6
53mmN6 1/2
54.5mmO7
55.5mmP7 1/2
57mmQ8
58mmQ 1/28 1/2
59.5mmR 1/29

International ring size guide:

Circumference (mm)USA / AsianUK SizesFrench / Russian
39.61 1/2C-
41.02D41 1/2
42.22 1/2E42 3/4
43.63F44
44.53 3/8G45 1/4
45.13 5/8G 1/246
45.43 3/4H46 1/2
46.64 1/4I47 3/4
47.74 5/8J49
48.75J 1/249 3/4
49.05 1/8K50
49.95 1/2L51 3/4
51.26M52 3/4
52.56 1/2N54
53.87O55 1/4
55.07 1/2P56 1/2
56.48Q57 3/4
57.78 5/8R59
59.29 1/8S60 1/4
60.59 5/8T61 1/2
62.110 1/4U62 3/4
62.610 1/2U 1/262 7/8
63.010 5/8V63
64.411 1/8W65
65.711 5/8X66 1/4
66.612Y67 1/2
67.912 1/2Z68 3/4

NOTE: Standard US Ring Sizes: For Ladies = 5-6-7-8,

Petite Size = 1-2-3-4