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Pregnancy Weight Gain Chart
See our pregnancy weight gain chart below to understand what a typical range of weight gain should look like for you.
Underweight
BM1 < 18.5
28 to 40 lbs
(about 12.5 to 18 kg)
Normal weight
BMI 18.5 to 24.9
25 to 35 lbs
(about 11.5 to 16 kg)
Overweight
BMI 25 to 29.9
15 to 25 lbs
(about 7 to 11.5 kg)
Obese
BMI 30 or more
11 to 20 lbs
(about 5 to 9 kg)
Note: This chart reflects weight gain for a single baby pregnancy.
What causes weight gain during pregnancy?
In addition to the baby, weight gain during pregnancy is comprised of a number of factors3:
1. Placenta
1-2 lbs (0.5-1 Kg)
2. Amniotic fluid
2 lbs (1 Kg)
3. Breast tissue
1-2 lbs (0.5-1 Kg)
4. Blood supply
3-4 lbs (1-2 Kg)
5. Stored fat
for breastfeeding and delivery
for breastfeeding and delivery
6-8 lbs (3-4 Kg)
6. Larger uterus
3 lbs (1.5 Kg)
7. Baby
7-8 lbs (3.5-4 Kg)
8. Extra Body Fluids
4 lbs (2 Kg)
