
Tableau des Équivalences de Grandeur
Number
Sizes
Inside Inside Inside Inside Wheat
Sheaf
Equivalent
Equivalent
Equivalent
Equivalent
Equivalent
US/Canada Diameter Diameter Circumference Circumference British French Italy German Japanese Swiss
Standard (inches) (mm) (inches) (mm) Australian
3 0.554 14.1 1.740 44.2 F 44 4 14 4 4.00
3 1/4 0.562 14.3 1.765 44.8 F 1/2 45 5 14 1/4 5 5.25
3 1/2 0.570 14.5 1.790 45.5 G 45.75 5.5 14 1/2
3 3/4 0.578 14.7 1.815 46.2 G 1/2 46 6 14 7/8 6 6.50
4 0.586 14.9 1.840 46.8 H 1/2 47 6.75 15 7
4 1/4 0.594 15.1 1.865 47.4 I 47.75 7 15 1/8 7.75
4 1/2 0.602 15.3 1.890 48.0 I 1/2 48.25 8 15 1/4 8
4 3/4 0.610 15.5 1.915 48.7 J 49.25 9 15 5/8 9.00
5 0.618 15.7 1.941 49.3 J 1/2 50 9.5 15 3/4 9
5 1/4 0.626 15.9 1.966 49.9 K 50.5 10 15 7/8 10.00
5 1/2 0.634 16.1 1.991 50.6 L 51.75 10.5 16 10
5 3/4 0.642 16.3 2.016 51.2 L 1/2 52 11 16 3/8 11.75
6 0.650 16.5 2.041 51.8 M 52.75 11.5 16 1/2 11 12.75
6 1/4 0.658 16.7 2.066 52.5 M 1/2 53.25 12.25 16 3/4 12
6 1/2 0.666 16.9 2.091 53.1 N 54 13 17 13 14.00
6 3/4 0.674 17.1 2.116 53.8 N 1/2 54.5 13.75 17 1/8
7 0.682 17.3 2.141 54.3 O 55.25 14.5 17 1/4 14 15.25
7 1/4 0.690 17.5 2.167 55.0 O 1/2 56 15.25 17 1/2
7 1/2 0.698 17.7 2.192 55.6 P 56.5 16 17 3/4 15 16.50
7 3/4 0.706 17.9 2.217 56.3 P 1/2 57 16.5 17 5/8
8 0.714 18.1 2.242 56.9 Q 57.75 17 18 16 17.75
8 1/4 0.722 18.3 2.267 57.5 Q 1/2 58.25 17.75 17 1/4
8 1/2 0.730 18.5 2.292 58.2 R 58,75 18.5 18 1/2 17
8 3/4 0.738 18.7 2.317 58.9 R 1/2 59,25 19 18 3/4 19
9 0.746 18.9 2.342 59.5 S 60 19.5 19 18
9 1/4 0.754 19.2 2.368 60.1 S 1/2 60,5 20.25 19 1/4 20.25
9 1/2 0.762 19.4 2.393 61 S 3/4 61 21 19 1/2 19
9 3/4 0.770 19.6 2.418 61.6 T 61,75 21.5 19 3/4 21.5
10 0.778 19.8 2.443 62.3 T 1/2 62,25 22 20 20
10 1/4 0.786 20.0 2.468 62.7 U 62,75 22.75 21
10 1/2 0.794 20.2 2.493 63.5 U 1/2 63.5 23.5 20 1/4 22 22.75
10 3/4 0.802 20.4 2.518 64.0 V 64.25 24.25 20 1/2
11 0.810 20.6 2.543 64.8 V 1/2 64.75 25 20 3/4 23
11 1/4 0.818 20.8 2.569 65.3 W 65.5 25.75 21 25.25
11 1/2 0.826 21.0 2.594 65.9 W 3/4 66.25 26.5 21 24
11 3/4 0.834 21.2 2.619 66.5 X 1/4 66.75 27 21 1/4
12 0.842 21.4 2.644 67.2 Y 67.5 27.5 21 1/4 25 27.50
12 1/4 0.850 21.6 2.669 67.8 Y 1/2 68 28 21 1/2
12 1/2 0.858 21.8 2.694 68.4 Z 68.75 28.5 21 3/4 26 28.75
12 3/4 0.866 22.0 2.719 69.1 Z 1/2 69.25 29.25 21 3/4
13 0.874 22.2 2.744 69.7 70 30 22 27
13 1/4 0.882 22.4 2.769 70.3 Z1 70,75 31
13 1/2 0.890 22.6 2.795 71.0 71,5 32
13 3/4 0.898 22.8 2.820 71.6 Z2 72,25 33
14 0.906 23.0 2.845 72.3 Z3 73 34
14 1/4 0.914 23.2 2.870 72.9 35
14 1/2 0.922 23.4 2.895 73.5 Z4 74,25
14 3/4 0.930 23.6 2.920 74.2 75
15 0.938 23.8 2.945 74.8 Z5 75,5
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