Calculate the recommended weight gain during pregnancy based on initial weight and height (BMI).
The Pregnancy Weight Gain Calculator indicates the recommended weight gain during pregnancy based on the pre-pregnancy body mass index. The recommendation is lower the higher the BMI was at the beginning of the pregnancy.
The calculator is free, works in your browser without registration, and shows the result as soon as you change the values. The calculation is done on your device, and the information you enter is not sent anywhere.
BMI = weight / height². Recommended weight gain: underweight 12.5–18 kg, normal weight 11.5–16 kg, overweight 7–11.5 kg, and obesity 5–9 kg.
Height 168 cm and weight 64 kg before pregnancy: BMI is 22.7 (normal weight), so the recommendation is 11.5–16 kg and target weight at the end of pregnancy 75.5–80 kg. With default values, the calculator gives the result: Recommended weight gain 11.5–16.0 kg.
For pregnant individuals and those planning a pregnancy. It does not replace advice from a maternity clinic or doctor.
The recommendation depends on the initial weight index: for normal weight individuals, 25.4–35.3 lb.
In a twin pregnancy, the recommendation is individual. Discuss with your maternity clinic.
No. The calculator is indicative, and the maternity clinic provides a personal recommendation.