Ring Size Guide

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.

Find your Diameter

Diameter is the measurement across the inner width of a ring, going from one side to the other.

You'll Need:

  • A ring that fits you
  • Ruler 

Step 1: 

Find a ring that fits

Step 2: 

Lay ring on top of ruler, and measure the widest area inside the ring from inner edge to inner edge. Round to the closest whole millimeter.

Step 3: 

If your ring is a different shape and is not circular, measure the shortest distance across.

Use the diameter measurement you've just found, and consult the chart to see which ring size corresponds with your measurement.

Find your Circumference

Circumference is the measurement around the base of the finger.

You'll Need:

  • Strip of paper or string
  • Pen
  • Ruler 

Step 1: 

Wrap a string comfortably around the desired finger.

Step 2: 

With a pen or marker, mark the spot where the string or paper meets and feels comfortable. 

Step 3: 

Lay the string or strip of paper on a flat surface and measure its length in millimeters.

Use the circumference you just found, and consult the chart to see which ring size corresponds to your measurement.

Inner Diameter (mm) Inner Circumference (mm) ISO/EUR Size US Size
14.0 44.0 44 3
14.5 45.6 45 3.5
15.0 47.1 47 4
15.5 48.7 48 4.5
16.0 50.3 50 5
16.5 51.9 52 6
17.0 53.4 53 6.5
17.5 55.0 55 7
18.0 56.6 56 8
18.5 58.2 58 8.5
19.0 59.7 59 9
19.5 61.3 61 10
20.0 62.8 62 10.5
20.5 64.4 64 11
21.0 66.0 66 12
21.5 67.5 67 12.5
22.0 69.1 69 13

Helpful sizing tips:

When Choosing a ring size:

Always choose the ring size of the largest finger you’ll be wearing the ring on.

Stackable rings:

For a more comfortable fit, consider selecting one size up from your normal ring size.

Wide band rings:

This ring has a wider band, so we recommend going one size larger than your normal ring size.