Pregnancy Weight Gain Calculator
Understanding Pregnancy Weight Gain
Healthy weight gain during pregnancy depends on pre-pregnancy BMI. Underweight women should gain more, overweight women should gain less. Proper weight gain supports fetal development.
Recommended Gains (singleton)
- Underweight (BMI < 18.5): 12.5-18 kg
- Normal (BMI 18.5-25): 11.5-16 kg
- Overweight (BMI 25-30): 7-11.5 kg
- Obese (BMI > 30): 5-9 kg
💡 Tips
- Most gain happens in 2nd and 3rd trimesters
- Extra 300-500 calories/day in 2nd/3rd trimester
- Twins require more weight gain
- Discuss weight gain goals with your doctor