US UK Europe Australia 12-18 m 12 m 80 cm 18-24 m 18 m 80-86 cm 18 m 23/24 m 24 m 86-92 cm 2 2T 2-3 92-98 cm 3 4T 3-4 98-104 cm 4 5 4-5 104-110 cm 5 6 5-6 110-116 cm 6 6X-7 6-7 116-122 cm 7