Pregnancy Weight Gain Tracker

Check whether your pregnancy weight gain is on track for your starting BMI, using IOM guidelines.

✓ Reviewed by Dr. Poonam Sekhon Chahal · 29 May 2026

How this is calculated

Uses your pre-pregnancy BMI to set the IOM 2009 recommended total weight gain and weekly rate, then compares your current gain to what's expected at your week.

Sources

  1. Institute of Medicine Weight Gain During Pregnancy: Reexamining the Guidelines. National Academies Press 2009.

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This calculator is for educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. The result is based on standard clinical formulas applied to the values you entered — your individual situation may need adjustments your doctor can make. Never disregard professional medical advice or delay seeking it because of something you read or calculated on healthcalculus.

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