Inch 6.0   6.5  7.0   7.5  8.0   8.5   9.0   9.5  10.0 10.5 11.0 11.5 12.0 12.5 13.0 13.5 14.0 14.5 15.0 15.5 16.0
CM 15.2 16.5 17.8 19.1 20.3 21.6 22.9 24.1 25.4 26.7 27.9 29.2 30.5 31.8 33.0 34.3 35.6 36.8 38.1 39.4 40.6

Inch 16.5 17.0 17.5 18.0 18.5 19.0 19.5 20.0 20.5 21.0 21.5 22.0 22.5 23.0 23.5 24.0 24.5 25.0 25.5 26.0 26.5
CM  41.9 43.2 44.5 45.7 47.0 48.3 49.5 50.8 52.1 53.3 54.6 55.9 57.2 58.4 59.7 61.0 62.2 63.5 64.8 66.0 67.3

Inch 27.0 27.5 28.0 28.5 29.0 29.5 30.0 30.5 31.0 31.5 32.0 32.5 33.0 33.5 34.0 34.5 35.0 35.5 36.0 36.5 37.0
CM  68.6 69.9 71.1 72.4 73.7 74.9 76.2 77.5 78.7 80.0 81.3 82.6 83.8 85.1 86.4 87.6 88.9 90.2 91.4 92.7 94.0