Pregnancy Weight Gain Calculator
Calculate recommended weight gain during pregnancy based on pre-pregnancy BMI using IOM guidelines for singleton and twin pregnancies.
Your Information
kg
weeks
Current Weight Gain
7.0 kg
Within recommended range
📊Pre-pregnancy BMI
23.9
📋BMI Category
Normal weight
🎯Recommended Total
11.5-16 kg
📅Weeks Remaining
16 weeks
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 |