Baby Growth Chart - Average Weekly Size for Weeks 26-40
Growth Chart, Weeks 3-12 | Growth Chart, Weeks 13-25 | Growth Chart, Weeks 26-40
Please Note:
- Pregnancy weeks are counted from your last menstrual period.
- Weeks 3-19, measurements are taken from head to rump.
- Weeks 20-40, measurements are taken from head to toe.
Week 26

Fetus Size
Your baby is about the size of a head of broccoli during week 26.
LENGTH: 13.98 in / 35.5 cm
WEIGHT: 1.60 lb / 725.7 g
Fetus Image Week 26 >>
Week 27

Fetus Size
Your baby is about the size of a cantaloupe during week 27.
LENGTH: 14.68 in / 37.3 cm
WEIGHT: 1.95 lb / 884.5 g
Fetus Image Week 27 >>
Week 28

Fetus Size
Your baby is about the size of an eggplant during week 28.
LENGTH: 14.99 in / 38.1 cm
WEIGHT: 2.29 lb / 1038.7 g
Fetus Image Week 28 >>
Week 29

Fetus Size
Your baby is about the size of a spaghetti squash in week 29.
LENGTH: 15.51 in / 39.4 cm
WEIGHT: 2.57 lb / 1165.7 g
Fetus Image Week 29 >>
Week 30

Fetus Size
Your baby is about the size of cauliflower during week 30.
LENGTH: 15.89 in / 40.4 cm
WEIGHT: 2.94 lb / 1333.6 g
Fetus Image Week 30 >>
Week 31

Fetus Size
Your baby is about the size of cabbage during week 31.
LENGTH: 16.34 in / 41.5 cm
WEIGHT: 3.35 lb / 1519.5 g
Fetus Image Week 31 >>
Week 32

Fetus Size
Your baby is about the size of a pineapple during week 32.
LENGTH: 17.04 in / 43.3 cm
WEIGHT: 3.81 lb / 1728.2 g
Fetus Image Week 32 >>
Week 33

Fetus Size
Your baby is about the size of a honeydew during week 33.
LENGTH: 17.65 in / 44.8 cm
WEIGHT: 4.30 lb / 1950.4 g
Fetus Image Week 33 >>
Week 34

Fetus Size
Your baby is about the size of celery during week 34.
LENGTH: 18.12 in / 46 cm
WEIGHT: 4.82 lb / 2186.3 g
Fetus Image Week 34 >>
Week 35

Fetus Size
Your baby is about the size of romaine lettuce during week 35.
LENGTH: 18.64 in / 47.3 cm
WEIGHT: 5.33 lb / 2417.6 g
Fetus Image Week 35 >>
Week 36

Fetus Size
Your baby is about the size of Napa cabbage during week 36.
LENGTH: 18.99 in / 48.2 cm
WEIGHT: 5.84 lb / 2648.9 g
Fetus Image Week 36 >>
Week 37

Fetus Size
Your baby is about the size of a butter squash during week 37.
LENGTH: 19.51 in / 49.5 cm
WEIGHT: 6.36 lb / 2884.8 g
Fetus Image Week 37 >>
Week 38

Fetus Size
Your baby is about the size of a crenshaw melon during week 38.
LENGTH: 19.98 in / 50.7 cm
WEIGHT: 7.26 lb / 3293.1 g
Fetus Image Week 38 >>
Week 39

Fetus Size
Your baby is about the size of a watermelon during week 39.
LENGTH: 20.31 in / 51.6 cm
WEIGHT: 7.78 lb / 3528.9 g
Fetus Image Week 39 >>
Week 40

Fetus Size
Your baby is about the size of a pumpkin during week 40.
LENGTH: 20.58 in / 52.2 cm
WEIGHT: 7.98 lb / 3619.7 g
Fetus Image Week 40 >>
Growth Chart, Weeks 3-12 | Growth Chart, Weeks 13-25 | Growth Chart, Weeks 26-40