Ring Size Converter – Accurate Ring Size Guide
May 31, 2025
How to Measure Your Ring Size
Ring Size Conversion: US, UK, EU & More
At Malani Jewelers, we believe that a ring isn’t just a piece of jewelry—it’s a promise, a celebration, a lifelong memory. Whether for yourself or someone dear, the perfect moment deserves the perfect fit.
But we get it—ring sizes can be confusing. Different countries, systems, and numbers. That’s why we’ve created this easy-to-use Ring Size Converter—to make your journey seamless, no matter where you are.
One World, Many Sizes
Here’s a quick breakdown of how different regions measure rings:
| Region | System Type | Measurement Method |
|---|---|---|
| United States (US) | Numeric (6, 7, 8) | Inner circumference (inches/mm) |
| United Kingdom (UK) | Alphabetic (L, M, N) | Circumference in millimeters |
| Europe (EU) | Numeric (52, 54, 56) | Circumference in millimeters |
| India (IN) | Numeric (11, 13, 15) | UK model adapted to local standards |
| Japan | Numeric (10, 12, 14) | Internal circumference, unique scale |
| Australia | Alphabetic | Similar to UK with slight differences |
Interactive Ring Size Converter
Quick Ring Size Conversion Chart
| US | UK | EU (mm) | India | Japan | Inside Diameter (mm) |
|---|---|---|---|---|---|
| 4 | H | 47 | 7 | 7 | 14.8 |
| 5 | J½ | 49 | 9 | 9 | 15.6 |
| 6 | L½ | 52 | 12 | 11 | 16.5 |
| 7 | N½ | 54 | 14 | 14 | 17.3 |
| 8 | P½ | 57 | 16 | 16 | 18.1 |
| 9 | R½ | 59 | 18 | 18 | 19.0 |
| 10 | T½ | 62 | 20 | 20 | 19.8 |
| 11 | V½ | 64 | 22 | 22 | 20.6 |
| 12 | Y | 67 | 24 | 24 | 21.4 |
| 13 | Z½ | 70 | 27 | 27 | 22.2 |
✨ In between sizes? Always go one size up—it’s easier to resize a slightly looser ring than one that’s too tight.
Avoiding Common Ring Sizing Mistakes
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💡 Need a hand? Whether you’re planning a proposal or treating yourself, our team is happy to help—no purchase required.
Explore Our RingsFrequently Asked Questions
Yes! Our ring size chart includes international conversions , allowing you to cross-reference sizes across:
- US
- UK
- EU
- India
- Japan
This is especially helpful for gift-giving or ordering rings while traveling or abroad.
No, different countries use different sizing systems . For example:
- The US and India use numerical sizes
- The UK and Australia use alphabetical labels
- Many regions use inner diameter (mm) or circumference (mm)
Our conversion chart helps you align these varied standards into one easy reference .
If your measurement falls between two standard sizes, we recommend choosing the larger size . It's easier to adjust a slightly loose ring with sizing beads or a quick resize than to deal with a ring that feels tight or uncomfortable.
Yes. Wider rings , such as thick bands or multi-layer styles, tend to fit more snugly than standard bands. If you're purchasing a wide ring, we recommend sizing up by half a size to ensure a comfortable fit without feeling too tight.
Absolutely! Our expert jewelry consultants are happy to assist you with ring sizing , product recommendations, and general guidance— even if you're just browsing . There’s no obligation to buy; we’re here to help you make the most informed decision.