Omnetec Ring Size Guide

Ring Size Guide

Finding the perfect ring fit is essential for both comfort and style. Use this guide to determine your correct US ring size.

Conversion Chart

US Ring Size
Circumference (mm)
Diameter (mm)
Diameter (inches)
7
54.4
17.3
0.68
8
57.0
18.1
0.71
9
59.5
18.9
0.75
10
62.1
19.8
0.78
11
64.6
20.6
0.81
12
67.2
21.4
0.84

How to Measure Your Ring Size at Home

Option 1: Measure a Ring You Already Own
  1. Select a ring that fits the finger you want to size.
  2. Measure the internal diameter (in mm).
  3. Match it with the chart above.
Option 2: Use a String or Paper Strip
  1. Cut a thin strip of paper or use a piece of string.
  2. Wrap it snugly around the base of your finger.
  3. Mark where the ends meet.
  4. Measure the length (in mm) – this is your finger’s circumference.
  5. Match it to the size chart.

 Pro Tips

  • Measure your finger at the end of the day when it's largest.
  • Avoid measuring when your hands are cold, as fingers may be smaller.
  • If you're between sizes, it's usually better to go one size up.