Ring Size Calculator
Unit ConversionGeneral ring size converter: enter a finger inner circumference or diameter in millimeters or inches, and get the equivalent size across six international sizing systems.
US / Canada Size
The nearest US / Canada ring size (rounded up, since fingers are not perfectly round).
Circumference (mm)
54.40
The finger circumference in millimeters, used to look up ring size.
UK / Australia Size
N
The equivalent UK / Australia ring size.
Germany / Switzerland Size
54.4
The equivalent Germany / Switzerland ring size (circumference in mm).
France / Russia Size
54.4
The equivalent France / Russia ring size.
Japan Size
14
The equivalent Japan ring size.
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Odeh Ahwal0people find this calculator helpful
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Unit Conversion calculators
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Unit Conversion calculators
Frequently Asked Questions
Should I measure circumference or diameter?
Circumference (the distance around the inside of an existing ring) is usually easier and more accurate to measure than diameter (the distance straight across). Either works -- just select which one you are entering.
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