Pregnancy Weight Gain Calculator

Track Your Healthy Weight Gain

Use our free Pregnancy Weight Gain Calculator to track how much weight you should be gaining based on your pre-pregnancy BMI, current week, and trimester. Simply enter your details above to see your recommended total, weekly rate, and progress instantly, based on IOM (Institute of Medicine) guidelines.

Why Healthy Weight Gain Matters During Pregnancy

Weight gain during pregnancy supports your baby’s growth, placental development, and your body’s changing needs. Gaining too little can affect your baby’s birth weight, while gaining too much can increase the risk of complications such as gestational diabetes and delivery difficulties. This is why tracking your progress against evidence-based ranges, rather than guessing, makes a real difference.

Pregnancy Weight Gain Calculator

Track your healthy weight gain during pregnancy based on IOM guidelines

Pre-pregnancy Weight (kg)

Your Height (cm)

Current Weight (optional) (kg)

Current Week (of pregnancy)

Pre-pregnancy BMI Category (select your BMI range)

Trimester (for rate recommendations)

— kg gained

—

Your pregnancy weight gain summary

Recommended Total

— kg

Weekly Rate

— kg/wk

Remaining to Gain

— kg

Progress

— %

📊 Weight Gain Progress

0%

Current Gain Recommended Remaining

Your pregnancy weight gain recommendations based on IOM (Institute of Medicine) guidelines.

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 dietician 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 Dietician 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 Dietician and Nutritionist Avni Kaul, a trusted dietician in Delhi, makes a genuine difference.

As a Dietician 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.

   
     
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   Juhi Kunzru 
 
 
 
 Trustindex verifies that the original source of the review is Google.  Really grateful to Avni and the entire team for their guidance and support. The plan was easy to follow, practical, and delivered great results. Highly professional, motivating, and truly caring. I would strongly recommend them to someone looking for real and lasting change.
  
 
 
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   Sharath Ramaswamy 
 
 
 
 Trustindex verifies that the original source of the review is Google.  Avni approaches nutrition and wellbeing in a genuinely scientific and highly customized way. Her knowledge is impressive, but what truly stands out is the personalized element—it's clearly not a rigid, one-size-fits-all plan. I really appreciate that the process is designed to be flexible and adaptable to individual preferences and lifestyles. Beyond the methodology, the attention to detail and the support system she sets up are exceptional. She ensures the journey of nutritional improvement doesn't feel weary or lonely. Loved the gamification elements which made the process fun while encouraging a focus on sustainable, long-term habits. Would definitely recommend!!
  
 
 
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   Shruti Ganguly 
 
 
 
 Trustindex verifies that the original source of the review is Google.  When looking for someone to help you through your health journey, I think it is very important that the people who are guiding you do not approach it with any judgement. That is one of the best things I find about Avni & her team. They don't make food your enemy but rather teach you how to do it right, spending a lot of time in understanding your likes and dislikes and really personalising it to your need. You can be sure that you are being looked after individually. Alongside that, they also offer is a wealth of knowledge but also a delicate approach towards your journey. This is the main reason why I would recommend Avni to everyone.
  
 
 
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   Sanyogeeta Bali 
 
 
 
 Trustindex verifies that the original source of the review is Google.  Avni and team are really dedicated, just a call away, and available. Their diet plan is easy to follow and sustainable. Thanks a lot, And wish you the best!
  
 
 
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   Manal Pathak 
 
 
 
 Trustindex verifies that the original source of the review is Google.  I really like the services provided by Avni and her team. She and her team make sure that my preferences are accommodated into the diet they provide. They provide a specifically tailored plan that works around my daily routine and helps me achieve overall results. Highly recommend Avni and her services.
  
 
 
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   Srivatsallan V S 
 
 
 
 Trustindex verifies that the original source of the review is Google.  In March 2025, I had a scare with a sudden spike in my sugar levels. That was my wake-up call—I knew it was time to take my health seriously. I wasn’t looking for a quick fix but a long-term, sustainable lifestyle change. That’s when a close friend introduced me to Avni and NutriActivania. I reached out to Avni, and we discussed my goals and what I hoped to achieve. She and her team immediately put together a plan tailored specifically for me. The best part was how flexible it was—no drastic cuts, no extreme measures. Instead, they focused on equipping me with the skills and habits I needed to make lasting lifestyle changes. They listened to what worked for me, especially in terms of food preferences, and built a plan around my life rather than expecting me to adjust to theirs. That level of customization is what made it easy for me to stay committed. Each week, they share a personalised food plan and always check in before finalizing it. Avni has been incredibly supportive—always available to answer questions and consistently encouraging me to stay on track. Over the last seven months, I have lost 9 kgs. My sugar levels are back to normal, my cholesterol has dropped, and most importantly, I feel healthier. I eat better, and I am far more mindful about what I consume. I truly believe they’ve given me the tools to make better choices and have been instrumental in helping me reshape my lifestyle. Thank you, Avni and team. Thank you for being part of my journey and for helping shape it in the best way possible.
  
 
 
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   Priyanka Saini 
 
 
 
 Trustindex verifies that the original source of the review is Google.  During my first pregnancy, I was worried because I didn’t know how to give proper nutrition to my baby. Someone suggested Nutritionist Avni Kaul, so I joined her program and followed her diet plan throughout my pregnancy. She gave me a healthy meal plan that also allowed me to enjoy the foods I liked. My baby girl was born healthy and at a good weight. After pregnancy, I struggled with my weight, so I joined Avni Kaul’s post-pregnancy weight loss program. My weight went from 65 kg to 56 kg. I truly thank Nutri Activania and Nutritionist Avni Kaul for their support and guidance during my pregnancy and weight loss journey.
  
 
 
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   tanay chandel 
 
 
 
 Trustindex verifies that the original source of the review is Google.  ’ve been consulting Dietician Avni Kaul at Nutriactivania, and I’m genuinely seeing positive changes in myself. Her guidance is very practical, easy to follow, and tailored exactly to my routine. She always checks in, motivates me, and explains everything clearly. My energy levels have improved, my eating habits feel much more balanced, and I’m gradually seeing visible results in my weight and overall health. I really appreciate her support and expertise. Highly recommended!
  
 
 
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   Ayushi Jain 
 
 
 
 Trustindex verifies that the original source of the review is Google.  I visited Nutritionist Avni after struggling for months with low energy and irregular eating habits. She gave me a diet plan that was flexible, not restrictive, and I started feeling the difference in my energy levels within just a couple of weeks.

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