BarnMD Women's Health Hub

Pregnancy Weight Gain Calculator

Compare your pregnancy weight gain against IOM-recommended ranges for your pre-pregnancy BMI and gestational age.

IOM GuidelinesSingleton PregnancyPrivate & Secure

Enter Your Details

Pre-Pregnancy Weight (kg)

Height (cm)

Current Weight (kg)

Current Gestational Age (weeks)

Clinical Note

These IOM ranges apply to singleton pregnancies. Twin or multiple pregnancies have different, higher recommended ranges — ask your care provider for guidance specific to your pregnancy.

Your results will appear here

Enter your details, then click Calculate.

Educational use only. Ideal weight gain varies by individual health history. Always discuss your specific weight goals with your obstetrician or midwife.