Pregnancy Weight Gain Calculator

Recommended weight gain based on IOM 2009 guidelines — tailored to your pre-pregnancy BMI.

Pre-pregnancy weight (kg)

Height (cm)

Current pregnancy week

Multiple pregnancy

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Pregnancy Weight Gain Calculator — IOM 2009 Guidelines →

How much weight should you gain during pregnancy? IOM 2009 recommendations by pre-pregnancy BMI, week-by-week breakdown, and twin pregnancies explained.