Ring Size Converter
Choose a ring size system and convert it to the closest matching international sizes.
US
7
UK
N
EU
54
JP
14
CN
14
Diameter 17.3 mm · Circumference 54.4 mm · Closest-match reference.
Use conversion as a closest match
Different brands may vary slightly. Check diameter and circumference when comparing size charts.
FAQ
Common questions
How accurate is this ring size tool?
It provides an estimated ring size. Screen calibration, browser zoom, ring alignment, and measuring method can all affect the result.
Can I measure ring size on my phone?
Yes. A phone is often easier because you can place a ring directly on the screen after calibration.
What if I am between two sizes?
Check the fit with another method. Wider bands can feel tighter, so many buyers choose the larger nearby size for wide rings.
Should I use this for an engagement ring?
Use it as a starting point only. For expensive, custom, or engagement rings, confirm with a professional jeweler.