(inches)
3-6 months
6-12 months
12-18 months
18-24 months
Body Length (Front)
13 ⅜
14 ¾
15 ⅞
17
Body Length (Back)
17 ¾
19 ½
20 ¼
21 ⅜
Body Width
9 ⅜
9 ⅞
10 ⅜
10 ⅞
Baby Onesie Size Chart (BB1)
