Verified by Lion Experts
Ring Size Calculator
Find your exact ring size from finger circumference or inner diameter.
Closest match
US 7 · UK N · EU 54 · IN 14
Internal Diameter
17.3 MillimetersLeft Ring Finger — Ring Size
US
7
UK / AU
N
EU / FR / DE
54
JP / CN
14
IN
14
Circumference
54.3 Millimeters
5.43 Centimeters
Inner Diameter
17.3 Millimeters
0.681 Inches
Fit Tip
Your finger size can vary up to 0.5 sizes throughout the day—it's larger in the evening and when warm. If you're between sizes, choose the larger size, especially for wider bands.
Expert Insights & Knowledge
Frequently Asked Questions
Everything you need to know about the Ring Size Calculator and how to get the most accurate results.