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Pregnancy Weight Gain Calculator

See the recommended healthy weight gain range for your pregnancy week.

kg
cm
Week 12

Understanding pregnancy weight gain

Weight gain during pregnancy is natural and important for your baby's development. The recommended range depends on your pre-pregnancy BMI, based on guidelines from the Institute of Medicine.

Most weight gain happens in the second and third trimesters. In the first trimester, gaining 0.5-2 kg is typical. The weight includes your baby, placenta, amniotic fluid, increased blood volume, and breast tissue.

Every pregnancy is unique. These ranges are guidelines, not targets. Your midwife or GP can offer personalised advice based on your circumstances.

This calculator provides general estimates based on IOM guidelines. It is not medical advice. Always discuss weight gain with your midwife or healthcare provider, especially if you have any concerns.

Track your weight weekly

Nuhah includes a built-in weight log that tracks your gain week by week with a beautiful chart. Free to use.

Start Tracking