Recommendations for Total and Rate of Weight Gain During Pregnancy:

Prepregnancy BMI

BMI (kg/m2)

Total Weight Gain (lbs)

Rate of Weight Gain
2nd and 3rd Trimester (lbs/wk)

Underweight

<18.5

28-40

1 (1-1.3)

Normal weight

18.5-24.9

25-35

1 (.8-1)

Overweight

25-29.9

15-25

.6 (.5-.7)

Obese

>30

11-20

.5 (.4-.6)








To calculate BMI click here.

*Calculations assume a 1.1 to 4.4 lbs weight gain in first trimester.

Table taken from www.iom.edu.