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Ring Sizes

Amadeus rings are available in USA size 6 to 9. If you are unsure what yours is, please use this ring size chart or contact our customer support for advice.

RING SIZE CHART (FOR INCHES AND MM)

 US Ring Size  

 Diameter (mm)

Circumference (mm)

Diameter (inches)

Circumference (inches)

6

16.51

51.87

0.650

2.04

6 ¼

16.71

52.50

0.658

2.07

6 ½

16.92

53.15

0.666

2.09

6 ¾

17.13

53.82

0.674

2.12

7

17.35

54.51

0.683

2.14

7 ¼

17.45

54.82

0.687

2.17

7 ½

17.75

55.76

0.699

2.20

7 ¾

17.97

56.45

0.707

2.22

8

18.19

57.15

0.716

2.25

8 ¼

18.35

57.65

0.722

2.27

8 ½

18.53

58.21

0.729

2.29

8 ¾

18.69

58.72

0.736

2.31

9

18.89

59.34

0.748

2.35

 

Find your country in the list below to determine which ring size system to use:

  • US ring size: United States, Canada, Mexico
  • British ring size: United Kingdom, Australia, New Zealand, South Africa, Ireland
  • European ring size: France, Russia, Denmark, Sweden, Norway, Finland
  • German ring size: Germany, Argentina
  • Brazilian ring size: Brazil
  • Japanese ring size: Japan, China, Korea, Hong Kong, Taiwan, Singapore
  • Swiss ring size: Switzerland, Spain

If you don't see your country listed, it very likely still uses one of the above ring size systems.

 US Size       (US, CA, MX) 

 British Size   (UK, AU, NZ, ZA, IE)

European Size 
(FR, RU, DK, SE, NO, FI)

German Size (DE, AR)

Brazilian Size (BR)

Japanese Size (JP, CN, KR, HK, TW, SG)

Swiss Size  (CH, ES)

6

M

51.5

16.50

15

12.0

6 1/4

M 1/2

52.5

16.75

16

12

12.5

6 1/2

N

53.0

17.00

13

13.5

6 3/4

N 1/2

53.5

17

14.0

7

O

54.5

17.25

14

14.5

7 1/4

O 1/2

55.0

17.50

18

15.0

7 1/2

P

55.5

17.75

19

15

16.0

7 3/4

P 1/2

56.5

18.00

16

16.5

8

Q

57.0

18.25

20

17.0

8 1/4

Q 1/2

57.5

17

18.0

8 1/2

R

58.0

18.50

21

18.5

8 3/4

R 1/2

59.0

18.75

22

18

19.0

9

S

59.5

19.00

19

20.0


 

 

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