Enter your height and your weight before pregnancy to see your BMI and the suggested total weight gain range for a pregnancy with one baby.
How to use it
- Enter your height in centimetres.
- Enter your weight before pregnancy in kilograms.
- Read your BMI and suggested gain range.
Questions about this tool
Where do these ranges come from?
They follow U.S. Institute of Medicine guidance for one baby, based on starting BMI.
Do they apply to twins?
No. Twins and other situations have different advice, so ask your doctor or midwife.