US CHN UK JP DE FR CH 5 9 J 1/2 9 15.75 49 9 6 12 L 1/2 12 16.5 51.5 11.5 7 14 O 14 17.25 54 14 8 16 Q 16 18 56.5 16.5 9 18 S 18 19 59 19 10 20 T 1/2 20 20 61.5 21.5 11 23 V 1/2 23 20.75 64 24 12 25 Y 25 21.25 66.5 27.5 *Measurements shown in the Size Conversion Chart refer to body measurements.