Size Guide

How to Measure Your Ring Size

Preparation Tools:

  • Strip of paper, string, or thread
  • Scissors
  • Pen
  • Ruler

Measurement Steps:

  1. Wrap the Paper:

    • Take a strip of paper or string and wrap it around the thickest part of the finger you want to measure.
    • Ensure it is snug but not too tight.

  2. Mark the Intersection:

    • Use a pen to mark where the paper or string overlaps, creating a complete circle.

  3. Measure the Length:

    • Lay the paper or string flat and use a ruler to measure the distance between the marks.
    • This measurement is your finger circumference.

Ring Size Conversion Chart

Size Diameter (Dia) Perimeter
8 18.1 mm  56.9 mm
9 18.9 mm  59.5 mm
10 18.8 mm 62.1 mm
11 20.6 mm 64.6 mm

For the best performance and comfort, we recommend wearing your Vitalion Smart Ring on your index, middle, or ring finger. Follow these steps to ensure you get the perfect fit.

Note: Your Vitalion Smart Ring should be snug enough to stay in place but loose enough to slide over your knuckle with some resistance. If you’re between sizes, we recommend choosing the larger size for comfort.