How to find your ring size

Use the dropdown menus below to help find your circumference or diameter measurement. Next, use the chart to see which ring size corresponds to your measurement and find your perfect size.

Diameter is the measurement across the inner width of the ring
You'll need:
  • A ring that fits you
  • Ruler

Step 1:

Ensure that the ring you use fits the finger on which you plan to wear your new ring.

Step 2:

Use your ruler or tape measure to measure the widest points inside the ring from edge to edge.


If your ring has a different shape (not circular), measure the shortest distance across.


Measurement Type

Diameter Circumference US UK European
14 MM 44 MM 3 F1/2 44
14.6 MM 46 MM 3.75 H 46
15.3 MM 48 MM 4.5 H1/2 - I1/2 48
16 MM 50 MM 5 J-K 50
16.5 MM 52 MM 6 L - L1/2 52
17.2 MM 54 MM 7 M1/2 - N1/2 54
17.8 MM 56 MM 7.5 O - P 56
18.5 MM 58 MM 8.5 P1/2 - Q1/2 58
19 MM 60 MM 9 R1/2 - S 60
19.8 MM 62 MM 10 T1/2 62
20.4 MM 64 MM 10.5 V 64

Sizing Tips

When choosing a ring size:

Choose the ring size of the largest finger on which you’ll be wearing the ring. When measuring, round off to the closest whole millimeter.

Stackable rings:

For a looser fit, select one size up from your normal ring size.

Wide shank ring:

This ring has a wider band. We recommend one size larger than your normal ring size.