Pregnancy Weight Gain Calculator
See whether your pregnancy weight gain is within the IOM recommended range for your pre-pregnancy BMI.
Your Weight Gain
Based on IOM (2009) guidelines for single pregnancies. Individual needs vary — follow your doctor's advice.
About pregnancy weight gain
How much weight to gain in pregnancy depends on your pre-pregnancy BMI. The IOM (2009) guidelines give ranges for each BMI group.
Gaining within the recommended range is linked to better outcomes for you and your baby.
FertiJourney supports healthy pregnancy and IVF — get a free consultation.
Pregnancy weight gain FAQ
How much weight should I gain?
It depends on pre-pregnancy BMI — IOM ranges guide the total.
Is gaining too much or too little risky?
Both can raise risks for you and baby; aim for the recommended range.
Does it differ for twins?
Yes — twin pregnancies need more gain; ask your doctor.