Determine ring size

1. Use a small rope, thread or piece of paper. Circle it around the most inner part of your finger. 

2. Mark the length of the rope/thread/paperpiece and measure in millimeters (mm) the length using a ruler.

3. Now you have calculated the circumference in mm. You can also use the thread/rope/paper to make a circle and measure diameter with the ruler. Thus you have now concluded the European ring-sizes.

Translation of measurements:

US

Germany

UK

Brazil

European

Japan

Perimeter

5

15.7

0.5J

12

49

9

49

6

16.5

    0.5L

    14

    52

    12

    52

    7

    17.3

    O

    17

    54

    14

    55

    8

    18.1

    Q

    19

    57

    16

    57

    9

    18.9

    S

    21

    59

    18

    59

    10

    19.8

    0.5T

    24

    62

    20

    62

    11

    20.6

    0.5V

    26

    64

    23

    65

    12

    21.4

    0.5X

    28

    67

    25

    68

    13

    22.3

    31

    69

    27

    70

    14

    23.1

    33

    72

    29

    72.5

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

     

    Further recommendations:

    -Ring-size according to size for ring/index-finger.
    -Broad rings may require slight increased size compared to thin rings.
    -Finger-size may vary during the day depending on activity and temperature. 
    -A Ring should fit your finger without easily falling of, but at the same time not causing discomfort.