This UK to US ring size conversion chart provides a quick and easy way to find the correct ring size when shopping across different sizing standards. For example, UK size F equals US size 3, H converts to US size 4, and the scale continues up to UK size Z, which corresponds to US size 13. Using this chart is essential for anyone buying rings online from international retailers or gifting rings to someone abroad. The UK uses letters while the US uses numbers, and understanding this difference helps avoid sizing mistakes. Whether you’re selecting an engagement ring, wedding band, or everyday accessory, this chart ensures a proper fit and smooth shopping experience. Bookmark this guide for accurate ring size conversion every time.
UK to US and EU Ring Size Conversion Chart
| UK Size | US Size | EU Size (Circumference in mm) |
|---|---|---|
| A | 0.5 | 37.8 |
| B | 1 | 39.1 |
| C | 1.5 | 40.4 |
| D | 2 | 41.7 |
| E | 2.5 | 42.9 |
| F | 3 | 44.2 |
| G | 3.5 | 45.5 |
| H | 4 | 46.8 |
| I | 4.5 | 48.0 |
| J | 5 | 49.3 |
| K | 5.5 | 50.6 |
| L | 6 | 51.9 |
| M | 6.5 | 53.1 |
| N | 7 | 54.4 |
| O | 7.5 | 55.7 |
| P | 8 | 57.0 |
| Q | 8.5 | 58.3 |
| R | 9 | 59.5 |
| S | 9.5 | 60.8 |
| T | 10 | 62.1 |
| U | 10.5 | 63.4 |
| V | 11 | 64.6 |
| W | 11.5 | 65.9 |
| X | 12 | 67.2 |
| Y | 12.5 | 68.5 |
| Z | 13 | 69.7 |
This is a detailed conversion chart that allows you to accurately compare ring sizes across the three most widely used systems: UK (letter-based), US (numerical), and EU (measured in millimeters of inner circumference). Whether you’re buying or selling rings online or in-store, knowing the exact equivalent size is essential to ensure a perfect fit. UK sizes range alphabetically from A to Z, while US sizes follow a sequential number scale, often including half sizes. European sizes are measured more precisely based on the inner circumference of the ring in millimeters, offering exact measurements ideal for professional and international use.
This comprehensive ring size guide is especially helpful for global jewelry buyers, sellers, and manufacturers. If you’re purchasing a ring abroad or offering ring options to an international customer base, this chart ensures there’s no guesswork involved in choosing the right size. It’s a vital resource for e-commerce platforms, jewelry brands, and anyone needing consistent and accurate ring size conversions between the UK, US, and EU standards. With this chart, you can shop or size rings confidently, knowing the conversion is 100% precise.