Pregnancy Weight Gain Calculator (Imperial Units)

Pregnancy is a time of incredible change, both physically and emotionally. One of the most significant physical changes is weight gain. Gaining the right amount of weight during pregnancy is crucial for the health of both you and your baby.

Pregnancy Weight Gain Calculator (Imperial Units) uses your personal Body Mass Index (BMI) to estimate a schedule for your healthy weight gain per week, understand that helps to manage calorie intake over the entire pregnancy period.

Weight gain recommendations for women pregnant with one baby

You should gain 28-40 pounds if your pre-pregnancy BMI is less than 18.5 (underweight)
You should gain 25-35 pounds if your pre-pregnancy BMI is between 18.5-24.9 (normal)
You should gain 15-25 pounds if your pre-pregnancy BMI is between 25.0-29.9 (overweight or pre-obesity)
You should gain 11-20 pounds if your pre-pregnancy BMI is between 30.0-39.9 (obesity 1, 2)

Weight gain recommendations for women pregnant with twins

You should gain 37-54 pounds if your pre-pregnancy BMI is between 18.5-24.9 (normal)
You should gain 31-50 pounds if your pre-pregnancy BMI is between 25.0-29.9 (overweight or pre-obesity)
You should gain 25-42 pounds if your pre-pregnancy BMI is between 30.0-39.9 (obesity 1, 2)

All recommendations are from the Institute of Medicine, with the exception of underweight women with twins. If you're pregnant with triplets or more, talk to your health care provider about your weight gain goals.