Pregnancy BMI Calculator

This tool does not linearly prorate a whole-pregnancy range by week. Weight-gain patterns differ across pregnancy and require fetal growth, edema, nausea, and multiple-pregnancy context.

These are population-level ACOG/IOM references, not a personal verdict of adequate or excessive gain. Weight alone cannot assess fetal growth. Review an individualized goal with prenatal care.

For heavy bleeding, severe abdominal pain, trouble breathing, fainting, severe headache or vision change, sudden major swelling, or reduced fetal movement, contact obstetric or emergency care now.