Pregnancy Weight
Calculate the recommended weight gain during pregnancy based on your pre-pregnancy BMI and current week of pregnancy.
Week 20 of 40
IOM Weight Gain Guidelines
| Pre-pregnancy BMI | Category | Recommended Gain (kg) | Recommended Gain (lbs) |
|---|---|---|---|
| <18.5 | Underweight | 12.5-18 kg | 28-40 lbs |
| 18.5-24.9 | Normal | 11.5-16 kg | 25-35 lbs |
| 25-29.9 | Overweight | 7-11.5 kg | 15-25 lbs |
| 30+ | Obese | 5-9 kg | 11-20 lbs |
Based on the Institute of Medicine (IOM) 2009 guidelines for singleton pregnancies.
Important Notes
This calculator provides general guidelines based on IOM recommendations. Every pregnancy is different. Always consult with your healthcare provider for personalized advice about weight gain during pregnancy. Factors like carrying multiples, pre-existing conditions, and individual health circumstances may require different recommendations.
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