Find Your Ring Size
Measure the inside diameter of a ring you already have (in millimeters) and enter it below.
| Ring Size (US) | Diameter (mm) |
|---|---|
| 5 | 15.7 |
| 6 | 16.5 |
| 7 | 17.3 |
| 8 | 18.2 |
| 9 | 19.0 |
| 10 | 19.8 |
| 11 | 20.6 |
| 12 | 21.4 |
Detailed Results
Size Conversions:
| System | Approx. Size |
|---|---|
| US | – |
| UK | – |
| EU | – |
| Japan | – |
Ring Recommendations
Personalized Tips
- Measure your finger at the end of the day for best results.
- Make sure your hands are warm, as cold fingers can be smaller.
- Measure multiple times for the most accurate average result.
How to Use This Calculator
- Gather a ring that fits your finger well and measure its inside diameter in millimeters.
- Enter the observed diameter in the text field above.
- Click “Calculate” to see your approximate US ring size and more details.
More Recommendations
In addition to the tips we provide, consider opting for rings that suit your style and comfort. If you prefer:
- Thin Bands: Perfect if you want something subtle and lightweight.
- Medium-Width Bands: A balanced choice for everyday wear.
- Bold Statement Rings: Great for larger sizes or those who love making a fashion statement.
Examples
Below is a quick example table showing how diameter translates to approximate ring size:
| Measured Diameter (mm) | Approx. US Ring Size |
|---|---|
| 16.0 | 6.2 |
| 17.5 | 7.8 |
| 19.2 | 9.5 |
Frequently Asked Questions (FAQ)
- Q: What if I don’t have a ring to measure?
A: You could measure your finger directly, but it’s best to use a ring as it already reflects how the metal rests around your finger. - Q: Does ring width affect how the size feels?
A: Yes, wider bands can feel tighter. Try a slightly larger size if you prefer thick bands. - Q: Can temperature affect my ring size measurement?
A: Absolutely. Measure when your hands are at a normal temperature to get the most accurate reading.