Size

Weight

Height

Preemie

Up to 5 lbs. / Up to 2.3 kg

Up to 17 in. / Up to 43.2 cm

Newborn (NB)

5-8 Ibs. / 2.3-3.6 kg

17-21 in. / 43.2-53.3 cm

0-3M

8-12 Ibs. /3.6-5.4 kg

21-24 in. / 53.3-61 cm

0-6M

Up to 16 lbs. / Up to 7.3 kg

17-26 in. / 43.2-66 cm

3-6M

12-16 Ibs. / 5.4-7.3 kg

24-26 in. / 61-66 cm

6-9M

16-20 Ibs. / 7.3-9.1 kg

26-28 in. / 66-71.1 cm

12M

20-24 Ibs. / 9.1-10.9 kg

28-30 in. / 71.1-76.2 cm

18M

24-28 Ibs. / 10.9-12.7 kg

30-32 in. / 76.2-81.3 cm

24M / 2T

28-32 Ibs. / 12.7-14.5 kg

32-34 in. / 81.3-86.4 cm

3T

32-35 Ibs. / 14.5-15.9 kg

34-38 in. / 86.4-96.5 cm

4T

35-39 lbs. / 15.9-17.7 kg

38-40 in. / 96.5-101.6 cm

ST

39-43 lbs. / 17.7-19.5 kg

40-44 in. / 101.6-111.8 cm