Pregnancy Weight Gain Calculator
Calculate recommended weight gain during pregnancy based on pre-pregnancy BMI using IOM guidelines for singleton and twin pregnancies.
Important Health Disclaimer
This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.
For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.
Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.
Not a substitute for professional medical advice
Your Information
Current Weight Gain
7.0 kg
Within recommended range
Weekly Gain Rate
Recommended: 0.35-0.50 kg/week
Your current rate: 0.29 kg/week
Projected total gain: 11.7 kg
Target Weight at Term
Goal: 76.5 - 81.0 kg
Required weekly gain: 0.28-0.56 kg/week
IOM Weight Gain Recommendations
| Pre-pregnancy BMI | Category | Total Gain (Singleton) | Weekly Rate (2nd/3rd tri) |
|---|---|---|---|
| < 18.5 | Underweight | 12.5-18 kg | 0.44-0.58 kg |
| 18.5-24.9 | Normal | 11.5-16 kg | 0.35-0.50 kg |
| 25-29.9 | Overweight | 7-11.5 kg | 0.23-0.33 kg |
| ≥30 | Obese | 5-9 kg | 0.17-0.27 kg |
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