Pregnancy Weight Gain Calculator
Track healthy, recommended weight gain week-by-week based on pre-pregnancy BMI and clinical IOM guidelines.
Maternal Measurements
IOM & ACOG Pregnancy Weight Gain Guidelines
| Pre-Pregnancy BMI | Category | Single Pregnancy Target | Twins Pregnancy Target |
|---|---|---|---|
| Less than 18.5 | Underweight | 28 – 40 lbs (12.5 – 18.0 kg) | 50 – 62 lbs (22.5 – 28.0 kg) |
| 18.5 – 24.9 | Normal Weight | 25 – 35 lbs (11.5 – 16.0 kg) | 37 – 54 lbs (17.0 – 25.0 kg) |
| 25.0 – 29.9 | Overweight | 15 – 25 lbs (7.0 – 11.5 kg) | 31 – 50 lbs (14.0 – 23.0 kg) |
| 30.0 and above | Obesity | 11 – 20 lbs (5.0 – 9.0 kg) | 25 – 42 lbs (11.0 – 19.0 kg) |
Frequently Asked Questions
Common questions regarding maternal weight progression during pregnancy.
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About Pregnancy Weight Gain Calculator
Track healthy maternal weight gain progression week-by-week based on pre-pregnancy BMI and Institute of Medicine (IOM) clinical guidelines.
Key Highlights & Capabilities
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