Pregnancy Weight Gain Calculator
Understanding healthy weight gain during pregnancy is crucial for both maternal and fetal health. Use our calculator to determine your recommended weight gain based on your pre-pregnancy BMI.
Weight Gain Recommendations
Underweight (BMI < 18.5)
28-40 lbs total weight gain
Normal Weight (BMI 18.5-24.9)
25-35 lbs total weight gain
Overweight (BMI 25-29.9)
15-25 lbs total weight gain
Obese (BMI ≥ 30)
11-20 lbs total weight gain
Weight Gain by Trimester
- 1First Trimester: 1-4.5 lbs total (slow, steady gain)
- 2Second Trimester: 1 lb per week on average
- 3Third Trimester: 1 lb per week on average
Factors Affecting Weight Gain
Multiple Pregnancy
Twins or multiples require higher weight gain (37-54 lbs for twins)
Age and Activity Level
Younger mothers and those with higher activity levels may need more calories
Important: These are general guidelines. Always consult with your healthcare provider for personalized recommendations based on your individual health status and pregnancy circumstances.
Healthy Weight Gain Tips
- Eat nutrient-dense foods rather than empty calories
- Include protein, healthy fats, and complex carbohydrates
- Stay hydrated with plenty of water
- Engage in regular, moderate exercise (with doctor approval)
- Monitor weight gain weekly, not daily
- Don't diet during pregnancy - focus on healthy eating