Ring Size by Diameter Conversion Calculator Tool
Convert
Find your ring size by measuring the diameter quickly and accurately using our free online tool.
Conversion Chart
| Diameter (mm) | US | UK | EU |
|---|---|---|---|
| 3 | F | 44 | |
| 3.5 | G | 45.5 | |
| 4 | H | 47 | |
| 4.5 | I | 48.5 | |
| 5 | J | 50 | |
| 5.5 | K | 51.5 | |
| 6 | L | 53 | |
| 6.5 | M | 54 | |
| 7 | N | 55.5 | |
| 7.5 | O | 57 | |
| 8 | P | 58.5 | |
| 8.5 | Q | 60 | |
| 9 | R | 61.5 | |
| 9.5 | S | 63 | |
| 10 | T | 64 | |
| 10.5 | U | 65.5 | |
| 11 | V | 67 | |
| 11.5 | W | 68.5 | |
| 12 | X | 70 | |
| 12.5 | Y | 71.5 | |
| 13 | Z | 73 |
Ring Size by Diameter Converter
Finding your ring size by measuring the diameter is easy with our converter. Enter your ring's diameter in millimeters to find the corresponding US, UK, and EU sizes.
Why Use Our Ring Size by Diameter Converter?
- Quickly convert ring diameter to standard sizes.
- Avoid the hassle of returns by selecting the right size.
- Easily navigate different sizing systems for rings.
How to Use the Ring Size by Diameter Converter
- Measure the diameter of your ring in millimeters.
- Enter the diameter in the provided field.
- Refer to the conversion table for accurate size matching.
With our Ring Size by Diameter Converter, you can confidently shop for rings that fit perfectly. Whether you're buying for yourself or as a gift, our tool ensures you find the right size every time.