Ring Size Guide

Finding the perfect ring size ensures a comfortable and secure fit. Use this guide to determine your UK ring size with precision. The table below provides a detailed comparison of UK, US, and EU ring sizes along with the corresponding inner diameter measurements.

Ring Size Conversion Chart

UK Size	Inside Diameter (mm)	US Size	EU Size
F	14.07 mm	3	44
G	14.48 mm	3 ½	45 ¼
H	14.88 mm	4	46 ½
I	15.29 mm	4 ½	47 ⅛
J	15.49 mm	4 ¾	48 ⅜
K	15.90 mm	5 ¼	49 ⅝
L	16.31 mm	5 ¾	50 ⅞
M	16.71 mm	6 ¼	52 ⅛
N	17.12 mm	6 ¾	53 ⅜
O	17.53 mm	7	54 ⅝
P	17.93 mm	7 ½	55 ⅞
Q	18.34 mm	8	57 ⅛
R	18.75 mm	8 ½	58 ⅜
S	19.15 mm	9	59 ⅝
T	19.56 mm	9 ¾	60 ⅞
U	19.96 mm	10 ¼	62 ⅛

---

How to Measure Your Ring Size

To find your ideal ring size, try one of the following methods:

1. Measure an Existing Ring

• Select a ring that fits comfortably on the intended finger.
• Measure the inner diameter (mm) using a ruler.
• Compare the measurement with the chart above to determine your UK size.

2. Measure Your Finger

• Wrap a strip of paper or string around the base of your finger.
• Mark the point where it overlaps and measure the length with a ruler.
• Use the inside diameter from the chart to find your size.

Helpful Tips for Accurate Sizing

• Measure your finger at the end of the day when it is at its largest.
• Avoid measuring when your hands are too cold or too warm, as finger size fluctuates.
• If you fall between two sizes, opt for the larger size for a more comfortable fit.

---