Ring Size Chart

Not sure of your ring size? Read our concise chart for measuring women’s ring sizes below. 

Our top tips 

For the most accurate result make sure that you take finger measurements in the evening when the hands are warm, as this is when finger diameter is largest. In colder weather, fingers are slimmer – sometimes up to half a size! You want to make sure that your ring will fit whether the wearer is warm or cool and that it’s never too tight.

While our ring size chart offers a good reference, we recommend you get your ring sized professionally in one of our boutiques. If you can’t visit, simply follow our ring size chart.

Inside Diameter
Inches MM USA UK HK
0.554 14.07 3 F 6
0.562 14.27 3.25 F½ 6.5
0.57 14.48 3.50 G 7.25
0.578 14.68 3.75 G½ 8
0.586 14.88 4 H 8.5
0.594 15.09 4.25 H½ 9
0.602 15.29 4.50 I 9.5
0.61 15.49 4.75 I½ 10
0.618 15.7 5 J 11
0.626 15.9 5.25 J½ 11.5
0.634 16.1 5.50 K 12
0.642 16.31 5.75 K½ 12.5
0.65 16.51 6 L 13
0.658 16.71 6.25 L½ 14
0.666 16.92 6.50 M 14.5
0.674 17.12 6.75 M½ 15
0.682 17.32 7 N 15.5
0.69 17.53 7.25 N½ 16
0.698 17.73 7.50 O 17
0.706 17.93 7.75 O½ 17.5
0.714 18.14 8 P 18
0.722 18.34 8.25 P½ 18.5
0.73 18.54 8.50 Q 19
0.738 18.75 8.75 Q½ 20
0.746 18.95 9 R 20.5
0.754 19.15 9.25 R½ 21
0.762 19.35 9.50 S 21.5
0.77 19.56 9.75 S½ 22
0.778 19.76 10 T 22.5