Pregnancy weight gain calculator
Enter your height and your weight before pregnancy. You'll see the range of total weight gain that is usually healthy for you, for one baby or twins.
Ranges follow the Institute of Medicine (2009) guidance, with the lower BMI cut-offs recommended for South Asian adults. They are a guide, not a target to hit each week. Your doctor will track your gain at check-ups and may set a different range for you. If weighing yourself makes you anxious, you don't need to do it at home.
Common questions
How much weight should I gain in pregnancy?
For one baby, most women in the healthy weight range gain about 11.5 to 16 kg in total. Women starting below the healthy range usually need a little more, and those above it a little less.
Why are the BMI groups different for Indians?
Indian guidelines use lower cut-offs (23 and 25 instead of 25 and 30) because health risks rise at lower BMI in South Asian adults.
Do I need to eat for two?
No. In the first trimester most women need no extra food at all. Later the need rises a little, not double. The quality of food matters more than the amount.
Is it a problem if I lose weight in the first trimester?
A small loss with nausea is common and usually not a worry. If you can't keep food or fluids down, see your doctor.
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