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Measure your ring size

The official ring size standard in Europe is based on the diameter of the ring. If the diameter measure is 54 mm, then the ring size is 54.

The most basic way to determine your ring size is to measure the diameter of your finger.

To find your ring size, do the following:

  • Use a piece of string or dental floss and wrap it around the base of your finger.
  • Use a pen to mark the point on the string where the end meets.
  • Use a millimeter ruler to measure the string. If the measure is 54 mm, then your ring size would be 54.


The method with the string is not perfect, and your actual ring size can differ from your result.

To be perfectly sure, you need to measure your finger with a ring sizer tool (finger gauges) or to measure the diameter of one of your rings with a caliper. 

 

size

diameter

46

14.6 mm

47

14.9 mm

48

15.2 mm

49

15.5 mm

50

15.8 mm

51

16.2 mm

52

16.5 mm

53

16.8 mm

54

17.1 mm

55

17.4 mm

56

17.8 mm

57

18.1 mm

58

18.4 mm

59

18.7 mm