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      Total

      Use a string to measure the circumference (circ.) of the finger. Wrap the string around the ring finger and measure its length with a ruler.

       

      Circ. (mm)

       

      Circ. (inch)

      US size Australian size British size German size
      48 1.89 4 ½ i ½ i ½ 15.25
      49 1.93 5 j ½ j ½ 15.75
      51 2 5 ½ l l 16
      52 2.04 6 m m 16.5
      53 2.08 6 ½ n n 17
      55 2.16 7 O O 17.25
      56 2.2 7 ½ p p 17.75
      57 2.24 8 q q 18
      58 2.28 8 ½ q ½ q ½ 18.5
      59 2.32 9 r ½ r ½ 19
      61 2.40 9 ½ S ½  S ½  19.5
      62 2.44 10 t ½ t ½ 20
      63 2.48 10 ½ U ½ U ½ 20.25
      65 2.55 11 v ½ v ½ 20.75
      66 2.59 11 ½ w ½ w ½ 21
      68 2.67 12 y y 21.25
      69 2.71 12 ½ z z 21.75
      70 2.75 13 - - 22