Ring sizes vary around the world. In the UK and Australia an alphabetical system is used, whereas in other parts of the world numerical systems are the norm. If you already have a ring that fits you perfectly you can determine your UK ring size by measuring the internal diameter of your ring in millimeters and then refer to the ring size table to find your ring size. 

Alternatively you can print out a copy of the Ring size chart and place your ring over the various sizes to see which is the perfect match. If you do not have a perfectly fitting ring already then you can accurately cut out the blue circles closest to your finger size, using the holes left behind to ‘try on' to determine your ring size. 

1. Determine your UK ring size

• UK Sizes
• US Sizes