size conversion:

xs s m l xl
aus 6 8 10 12 14
us 2 4 6 8 10
uk 6 8 10 12 14

measuring tips:

bust waist hips
size 6 xs 79 cm 62 cm 89 cm
size 8 s 84 cm 67 cm 94 cm
size 10 m 89 cm 72 cm 99 cm
size 12 l 94 cm 77 cm 104 cm
size 14 xl 99 cm 82cm 109 cm