Ring Size Guide

Find the perfect fit for your ring.

Ring Size Chart
North American Standard Internal Diameter (mm) Circumference (mm)
4 14.8 46.8
4.5 15.2 47.8
5 15.6 49.0
5.5 16.0 50.2
6 16.5 51.5
6.5 16.9 52.5
7 17.3 54.0
7.5 17.7 55.0
8 18.1 56.6
8.5 18.5 58.0
9 18.9 59.1
9.5 19.4 60.4
10 19.8 62.0
10.5 20.2 63.4
11 20.6 64.6
11.5 21.0 66.0
12 21.4 67.2
12.5 21.8 68.5
13 22.2 69.7

How to Measure Your Ring Size

  1. Cut a thin strip of paper or a piece of string.
  2. Wrap it around the base of your finger. Make sure it’s snug but not too tight.
  3. Mark the point where the paper or string overlaps to form a circle.
  4. Measure the length of the paper or string with a ruler. Use the chart above to find your ring size.

Tips for Measuring Your Ring Size

  • Measure your finger at the end of the day when it’s at its largest.
  • Avoid measuring your fingers when they’re cold as they can be smaller.
  • Measure your finger size several times to ensure accuracy.

You may also contact us at info@nikoghos.com to learn more.