- no title specified

Diameter mm

Circumference mm

USA

UK

 
     

14.3

44.8

 

14.5

45.5

G

 

14.7

46.1

 

14.9

46.8

4

H

 

15.1

47.4

 

15.3

48.0

I

 

15.5

48.7

J

 

15.7

49.3

5

 

15.9

50.0

K

 

16.1

50.6

 

16.3

51.2

L

 

16.5

51.9

6

 

16.7

52.5

M

 

16.9

53.1

 

17.1

53.8

N

 

17.3

54.4

7

 

17.5

55.1

O

 

17.7

55.7

 

17.9

56.3

P

 

18.1

57.0

8

 

18.3

57.6

Q

 

18.5

58.3

 

18.8

58.9

R

 

19.0

59.5

9

 

19.2

60.2

S

 

19.4

60.8

 

19.6

61.4

T

 

19.8

62.1

10

 

20.0

62.7

10¼

U

 

20.2

63.4

10½

 

20.4

64.0

10¾

V

 

20.6

64.6

11

 

20.8

65.3

11¼

W