Newborn/Infant/Toddler US Size Chart

US Size Newborn 0-6 Months Infant 12-18 Months Toddler 2T Toddler 3T-4T
Chest Inches 17"-18" 19"-20" 20"-21" 22"-23"
Waist Inches 18"-19" 19"-20" 19"-20" 20"-21"
Hips Inches 18" N/A 20"-21" 22"-23"
Height Inches 23"-26" 28"-32" 33"-34" 39"-42"
Weight Lbs 12-16 lbs 20-26 lbs 27-30 lbs 34-38 lbs
These costumes may tend to run a little small, if in doubt order the next largest size to ensure a more comforable fit

Infant/Toddler- International Size Chart

Newborn 0-6 Months Infant 12-18 Months Toddler 2T Toddler 3T-4T
Chest Centimeters 43.2-45.7 48.3-50.8 50.8-53.3 55.9-58.4
Waist Centimeters 45.7-48.3 48.3-50.8 50.8-53.3
Hips Centimeters 45.7 N/A 50.8-53.3 55.9-58.4
Height Centimeters 58.4-66 71.1-81.3 83.3-86.4 99.1-106.7
Weight Kg. 5.5-7.3 9.1-11.8 12.3-13.6 15.5-17.3