Pregnancy Weight Gain Calculator

Height (cm):

Weight Before Pregnancy (kg):

Current Week of Pregnancy (1-40):

Understanding Healthy Weight Gain During Pregnancy

Weight gain during pregnancy is a natural and necessary process to support your baby’s development, amniotic fluid, and maternal body changes. However, “eating for two” doesn’t mean doubling your portions. Instead, the focus should be on steady, gradual weight increase tailored to your pre-pregnancy body mass index (BMI).

Why Healthy Weight Gain Matters

Pre-Pregnancy BMI: Your starting BMI determines your target weight gain. Women with a lower pre-pregnancy BMI may require more gain, while those with a higher starting BMI need less to ensure a safe, full-term pregnancy.

Trimester Variations: Typically, very little weight is gained during the first trimester (around 0.5 to 2 kg). In the second and third trimesters, a steady, weekly increase becomes more noticeable.

Supporting Your Baby: This gained weight isn’t just fat; it is distributed among the growing baby, placenta, increased blood and fluid volume, and tissue expansion.

Using an interactive pregnancy weight gain tracker allows you to check if you are within safe ranges, helping you stay active and nourish your body confidently.