This complete guide features international ring size charts with official measurements in millimeters and inches, covering all major sizing systems: US, EU, UK, French, Japanese, …

*Disclaimer: Please understand that this conversion tool and chart is provided as is without any guarantees. Its purpose is to give you a general idea of your ring size.

The sizes are based on the ISO standard, which uses the inner circumference of the ring for their sizes but these don't directly relate to US or UK sizes, which is why we created a free, easy-to …

Aug 23, 2025 · To use the EU Ring Size Conversion Calculator, simply select your EU ring size from the dropdown bar below, and see the equivalent units for Europe, the US, and Asia, …

2 days ago · The United States, United Kingdom, Europe, and parts of Asia all use different measurement systems for ring sizes. This international ring size conversion chart helps you …

Comprehensive European ring size chart with numerical sizing system, measurement guide, and conversion to other international standards for accurate sizing.

Accurately determine what ring size you are in all international sizing standards.

Nov 11, 2025 · In this guide, we’ll show you how to convert ring sizes accurately, share conversion charts, and offer tips to make sure you never order the wrong size again.

Ring size conversion chart for ring sizes from the United States, UK, Italy, France, Spain, Germany and Japan.

Knowing your ring size in mm helps when converting to other measurement systems like EU ring size to US or UK sizes. A US ring size chart shows the relationship between ring numbers, …