Babies

Size

Newborn

Six Months

Twelve Months

Chest

to 18
(45.5)

to 20
(51)

to 22
(56)

Waist

18
(45.5)

19
(48)

20
(51)

Hip

19
(48)

20
(51)

21
(53.5)

Back length

6 1/8
(15.5)

6 7/8
(17.5)

7 1/2
(19)

Back width

7 1/4
(18.5)

7 3/4
(19.5)

8 1/4
(21)

One shoulder

2
(5)

2 1/4
(5.5)

2 1/2
(6.5)

Waist to underarm

3
(7.5)

3 3/8
(8.50

3 3/4
(9.5)

Wrist to underarm

6
(15.5)

6 1/2
(16.5)

7 1/2
(19)

Armhole depth

3 1/4
(8)

3 1/2
(9)

3 3/4
(9.5)

Upper arm circumference

6 1/2
(16.5)

7
(18)

7 1/4
(18.5)

Wrist circumference

5
(12.5)

5 1/8
(13)

5 1/8
(13)

Head circumference

15
(38)

15
(38)

16
(40.5)