Ring Size Converter
Ring size between US, UK, EU, Japan, and mm.
US / Canada
7
UK / AU
N
European
54
Japan
14
Circumference
54.4 mm
Inner diameter
17.3 mm
Measure with a thin strip of paper around the base of the finger or use a ring you already wear. Take the measurement at the end of the day when fingers are slightly larger. Cold weather can shrink ring size by half a number.
About
Convert ring sizes across the major systems. Also accepts head circumference or inner diameter in millimeters when measuring a ring you already wear.
How to use
- Pick what you have.
- Type the value.
- Read the conversion.
FAQ
How should I measure?+
Wrap a thin strip of paper around the base of the finger. Mark where it overlaps. That's your circumference in millimeters - look it up in the table.