Pregnancy Weight Tracker
IOM-based weight gain recommendations and weekly tracking
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Pre-pregnancy BMI
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Category
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Recommended gain (kg)
IOM Weight Gain Guidelines
| BMI Category | BMI Range | Total Gain (kg) | 2nd/3rd Trimester (kg/wk) |
|---|---|---|---|
| Underweight | <18.5 | 12.5 - 18.0 | 0.44 - 0.58 |
| Normal | 18.5 - 24.9 | 11.5 - 16.0 | 0.35 - 0.50 |
| Overweight | 25.0 - 29.9 | 7.0 - 11.5 | 0.23 - 0.33 |
| Obese | ≥30.0 | 5.0 - 9.0 | 0.17 - 0.27 |
Weekly tracker
Progress chart
The shaded area shows the recommended weight gain range based on IOM guidelines for your BMI category. Data is stored locally in your browser.