Newborn to 18 Months Sizing Guide

order size   new baby up to 1mth up to 3mths 3-6mths 6-9mths 9-12mths
height (cm)     up to 50 up to 56 56-62 62-68 68-74 74-80
weight (kgs)   up to 3.4 up to 4.5 4.5-6 6-8 8-9.5 9.5-11
weight (lbs)   up to 7.8 up to 10 10-14 14-18 18-21 21-24
 
order size   12-18mths 1½-2yrs 2-3yrs 3-4yrs 4-5 yrs    
height (cm)   80-86 86-92 92-98 98-104 104-110    
chest (cm)   49-51 51-53 53-55 55-57 57-59    
waist (cm)   50-51 51-52 52-53 53-54 54-55    
hip (cm)   52-54 54-56 56-58 58-60 60-62