Pregnancy Weight Gain (IOM Guidelines)
Recommended total gestational weight gain range.
What is Pregnancy Weight Gain (IOM Guidelines)?
Recommended total gestational weight gain range. Pregnancy Weight Gain is intended for use in: Pregnant patients, singleton pregnancy.
How to Use the Pregnancy Weight Gain Calculator
- Enter Pre-pregnancy weight in kg.
- Enter Height in cm.
- Enter Current weight (optional) in kg.
- Click Calculate to see your result and interpretation.
Formula & Version
This calculator uses formula version 1.0, last reviewed September 2026.
Clinical Considerations & Limitations
- IOM ranges are for singleton pregnancies — twin/multiple pregnancies have separate, higher recommended ranges.
References
- Institute of Medicine (US), Weight Gain During Pregnancy: Reexamining the Guidelines, 2009
Frequently Asked Questions
What is Pregnancy Weight Gain (IOM Guidelines)?
Recommended total gestational weight gain range.
Who is Pregnancy Weight Gain intended for?
Pregnant patients, singleton pregnancy. Always confirm applicability to your specific patient before use.
What are the limitations of Pregnancy Weight Gain?
IOM ranges are for singleton pregnancies — twin/multiple pregnancies have separate, higher recommended ranges.
What formula or reference does Pregnancy Weight Gain use?
Institute of Medicine (US), Weight Gain During Pregnancy: Reexamining the Guidelines, 2009
Is Pregnancy Weight Gain a diagnosis?
No. Pregnancy Weight Gain produces a score or estimate to support clinical decision-making — it is not a diagnosis and should be interpreted alongside full clinical judgement.
