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Ring Size Guide

Easy and fast:
Find your
right ring size

To ensure that your ring is a perfect fit and to avoid losing it, it is important that you find your correct ring size, before you purchase. This ensures the best wearing comfort.

There are two measurements to identify the size of a ring: the inside diameter and the inner circumference, each in mm. In our Windsor Mint Shop you chose your ring size using the inside diameter.

Because we want you to be happy with your ring from Windsor Mint, we have provided a simple instruction sheet for you to print off. With the ring size template you can easily measure your individual ring size.

Download and print instruction ‘Identifying your ring size’ >>

Conversion Table for your ring size

This conversion table helps you to find the right fitting ring size for you, by your measured inner circumference or inside diameter.

Inner circumference in mm 48 50 51 52 53 54 55 56 57 58 59 60 62 64 66 68
Inner diameter in mm 15.3 15.9 16.2 16.5 16.8 17.2 17.5 17.8 18.1 18.4 18.8 19.1 19.7 20.3 21.0 21.6
Your ring size 15 16 16 16 17 17 18 18 18 18 19 19 20 20 21 22

Tips to identify the right ring size:

  • Measure exactly the circumference of the finger on which you want to wear your ring.
  • The circumference of the fingers of the left hand and the right hand can be very different.
  • Your ring size can change over time, therefore please always check your current size.
  • Pregnancy, diets or illnesses can change your ring size.
  • Your ring size can also vary over the course of the day. Often fingers are thicker in the evening, compared to the morning.
  • Rising temperatures can also change the finger circumference. In summer fingers are often wider than in winter. 
  • For best wearing comfort wider rings should be bigger than narrow rings.