Pregnancy Weight Gain Calculator

How Is Your Recommendation Calculated?

Your recommended weight gain range depends primarily on your pre-pregnancy BMI category:

• Underweight – 28 to 40 lbs (approximately 12.7 to 18.1 kg) recommended
• Normal weight – 25 to 35 lbs (approximately 11.3 to 15.9 kg) recommended
• Overweight – 15 to 25 lbs (approximately 6.8 to 11.3 kg) recommended
• Obese – 11 to 20 lbs (approximately 5 to 9.1 kg) recommended

The calculator also factors in your current trimester, since the pace of healthy weight gain naturally differs across the three stages of pregnancy.

Weight Gain by Trimester

• First trimester (weeks 1-13) – Weight gain is typically minimal, often just 1 to 2 kg (2.2 to 4.4 lbs) total, as your body adjusts early on.
• Second trimester (weeks 14-27) – This is usually when weight gain picks up steadily, generally around 0.35 to 0.5 kg (0.8 to 1.1 lbs) per week for most women.
• Third trimester (weeks 28-40+) – Weight gain often continues at a similar steady pace, around 0.35 to 0.5 kg (0.8 to 1.1 lbs) per week, supporting your baby’s final growth stretch before delivery.

Why Your Result Is a Guideline, Not a Strict Rule

Every pregnancy is different, and factors like carrying twins, existing health conditions, or morning sickness can all affect your actual weight gain pattern. If your progress falls noticeably outside the recommended range in either direction, it is worth discussing with your doctor or dietitian rather than trying to self-correct through diet alone.

Tips for Healthy Weight Gain During Pregnancy

• Focus on nutrient-dense foods rather than simply eating more
• Include a mix of protein, whole grains, and healthy fats at each meal
• Stay consistent with meals rather than skipping and overcompensating later
• Keep prenatal check-ups regular to track both your weight and your baby’s growth
• Avoid comparing your progress to others, since healthy ranges vary by starting BMI

Why Work With a Dietitian During Pregnancy

A calculator gives you a helpful range, but a nutrition plan tailored to your trimester, appetite, and any pregnancy-related symptoms makes staying on track far easier. This is where working with Dietitian and Nutritionist Avni Kaul, a trusted dietitian in Delhi, makes a genuine difference.

As a Dietitian for Pregnancy in Delhi, Avni Kaul has helped numerous expecting mothers manage healthy weight gain through structured, trimester-specific nutrition plans rather than generic weight charts.

Explore Our Other Health Calculators

Pair this result with our other free tools to build a fuller picture of your pregnancy health:

• BMI Calculator – Check your Body Mass Index alongside your pregnancy weight tracking
• Calorie Calculator – See your daily calorie needs during pregnancy
• Water Intake Calculator – Track your hydration needs, which increase during pregnancy
• Protein Intake Calculator – Check your protein needs to support your baby’s growth

Conclusion

Healthy weight gain during pregnancy is about staying within a range that supports both you and your baby, not hitting an exact number. Tracking your progress by trimester helps you stay informed and catch any concerns early. For a nutrition plan built specifically around your pregnancy, visit Nutri Activania and book a consultation with Avni Kaul.