Choosing the right ring size is essential to ensure comfortable wear and a beautiful look of your jewelry on the hand.
The following ring size chart includes EU, UK, and US standards, along with the corresponding inner diameter and finger circumference in millimeters.
Ring Size Comparison Chart
| EU Size |
Inner Diameter (mm) |
Finger Circ.* (mm) |
UK Size |
US Size |
| 8 |
15.00 |
45 |
I |
5 |
| 9 |
15.33 |
46 |
J |
5 |
| 10 |
15.67 |
47 |
K |
6 |
| 11 |
16.00 |
48 |
L |
6 |
| 12 |
16.33 |
49 |
L |
6 |
| 13 |
16.67 |
50 |
M |
6 |
| 14 |
17.00 |
51 |
N |
7 |
| 15 |
17.33 |
52 |
O |
7 |
| 16 |
17.67 |
53 |
O |
7+ |
| 17 |
18.00 |
54 |
P |
8 |
| 18 |
18.33 |
55 |
Q |
8 |
| 19 |
18.67 |
56 |
R |
9 |
| 20 |
19.00 |
57 |
S |
9 |
| 21 |
19.33 |
58 |
S |
9+ |
| 22 |
19.67 |
59 |
T |
10 |
| 23 |
20.00 |
60 |
U |
10 |
*Finger circumference given in millimeters.
How to Measure Your Ring Size
To find the right ring size, you can use two simple methods: measuring the inner diameter of a ring or the circumference of your finger. Both methods are quick and help you determine your precise size.
Diameter
Use a ruler to measure the inside diameter of a ring at its widest point, then compare your result with the ring size chart.
Circumference
Wrap a thin thread or a strip of paper around your finger, mark where the ends meet, and measure the length in millimeters. The result is your finger circumference, which you can check in the size chart above.
