SIZING

AUS/ 

UK

US

EU

Diameter

Circumference

mm

inches

mm

inches

K

5.5

50

15.70

0.618

49.95

1.966

L

 

 

16.31

0.642

51.24

2.017

 

6

52

16.51

0.650

51.87

2.042

M

 

 

16.70

0.657

52.46

2.065

 

6 .5

54

16.92

0.666

53.16

2.093

N

 

 

17.10

0.673

53.72

2.115

 

7

55

17.35

0.683

54.51

2.146

O

 

 

17.50

0.689

54.98

2.164

 

7 .5

56

17.75

0.699

55.76

2.195

P

 

 

17.90

0.705

56.23

2.214

 

8

57

18.19

0.716

57.15

2.250

Q

 

 

18.30

0.721

57.49

2.263

 

8 .5

 

18.59

0.732

58.40

2.299

R

 

59

18.70

0.736

58.62

2.308

 

9

 

18.99

0.748

59.66

2.349

S

 

60

19.10

0.752

60.00

2.362

 

9 .5

 

19.41

0.764

60.98

2.401

T

 

61

19.50

0.768

61.26

2.412

 

10

 

19.84

0.781

62.33

2.454

U

 

63

19.90

0.784

62.52

2.461