Pregnancy Weight Gain Calculator

If you started your pregnancy at a healthy weight, by the time you give birth you will have gained between 25 and 35 pounds -- and probably only 7 to 8 pounds of that will be the baby itself. What accounts for the extra pregnancy weight gain? Everything from amniotic fluid (2 pounds) to an increased blood supply (4 pounds). Keeping your pregnancy weight gain in check can be a challenge. Use our pregnancy weight gain calculator below to find out if your weight gain is on target for your pregnancy.

Weight Before Pregnancy pounds

Height feet

inches

Pregnancy Weight Gain 0

Total Pregnancy Weight 0

Recommendations for Total Weight Gain During Pregnancy by Prepregnancy BMI*

Prepregnancy BMI (kg/m2)	Category	Total Weight Gain Range	Total Weight Gain Range for Pregnancy with Twins
<18.5	Underweight	28-40 lbs
18.5-24.9	Normal Weight	25-35 lbs	37-54 lbs
25.0-29.9	Overweight	15-25 lbs	31-50 lbs
>30.0	Obese	11-20 lbs	25-42 lbs

* Weight Gain During Pregnancy: Reexamining the Guidelines, The Institute of Medicine of the National Academies, May 28, 2009

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Pregnancy Weight Gain Calculator

Recommendations for Total Weight Gain During Pregnancy by Prepregnancy BMI*

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