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Baby Boy Growth and Weight Chart in KG and by Months

Introduction

Watching your baby grow is one of the most exciting parts of parenthood. Those chubby cheeks, the little stretches, and even the tiniest growth spurts feel like milestones worth celebrating. But it’s also completely normal to wonder “Is my baby growing at the right pace?” That’s where a height and weight chart for boys becomes super helpful.

These growth charts aren’t about comparing your baby to others but are designed to give you a general idea of how your little one is developing from month to month. So, if you’re curious about how tall or heavy your baby boy should be at each stage, this guide has all the answers.

Understanding the Height and Weight Chart for Boys

Before we dive into numbers, let’s clarify what the height and weight chart for boys actually is. The charts are drawn from World Health Organization (WHO) growth standards and are utilized by pediatricians globally. They assist in monitoring your baby’s growth by checking if their height and weight are within a healthy range for their age.

But remember, every baby is different. Genetics, birth weight, breastfeeding, sleep, and even your baby’s temperament can influence their growth. What’s more important than hitting exact numbers is steady progress over time. If you ever have concerns, your pediatrician is the best person to guide you.

Also Read:- Top Do’s and Don’ts for First-Time Mothers

Monthly Baby Boy Growth Chart (0–24 Months)

Now let’s take a look at how baby boys typically grow in their first two years. Below, we’ll walk through the baby boy weight chart and height averages by age, plus what’s considered within a normal range.

Weight and Height of a 3-month-old Baby Boy

By 3 months, your baby has likely grown quite a bit from birth. On average, the weight of a 3-month-old baby boy ranges between 5.1 to 7.9 kg, and the height is usually around 57.6 to 65.3 cm.

Many babies experience a growth spurt around this age. You’ll probably notice he’s more active, starts smiling a lot, and may even begin to lift his head during tummy time.

Weight and Height of a 6-month-old Baby Boy

At 6 months, baby boys generally weigh between 6.4 to 9.7 kg and have a height ranging from 63.6 to 71.6 cm. They’re typically rolling over by now, starting to sit with support, and maybe even showing signs of teething!

This is also when solid foods may be introduced alongside breast milk, which can also impact growth and weight gain.

Weight and Height of a 9-month-old Baby Boy

At this stage, your little one is moving more than ever. The average weight of a 9-month-old baby boy is between 7.2 to 10.9 kg, while his height will likely fall between 67.7 and 75.3 cm.

He may be crawling, pulling himself up, or even trying to stand. It’s an exciting (and busy!) time, and all that activity might make weight gain slow a bit—but that’s normal.

Also Read:- https://karpagamhospital.in/top-dos-and-donts-for-first-time-mothers/

Weight and Height of a 12-month-old Baby Boy

Happy birthday! By their first birthday, baby boys typically weigh 8.0 to 11.8 kg and measure 71.0 to 78.0 cm in height. At this age, they may start walking, babbling more, and becoming much more interactive.

This is a great time to start tracking growth on a baby growth chart during regular check-ups. To understand what happens during these important visits, read more about your baby’s first check-up at Karpagam Hospital.

Weight and Height of a 15-month-old Baby Boy

By 15 months, the average weight is around 8.5 to 12.2 kg, and height ranges from 73.4 to 80.7 cm. Toddlers at this stage are often on the move—walking, climbing, and exploring their world.

Appetites can be unpredictable, but as long as they’re gaining weight steadily and staying active, they’re likely right on track.

Weight and Height of an 18-month-old Baby Boy

At 18 months, expect your baby boy to weigh anywhere from 9.0 to 12.8 kg, with a height of 75.7 to 83.3 cm. While some toddlers experience growth spurts around this time, others grow gradually.

This is also a key developmental phase for speech and social skills, so don’t be surprised if you hear a few new words popping up!

Weight and Height of a 21-month-old Baby Boy

By 21 months, baby boys weigh about 9.4 to 13.2 kg and are approximately 77.6 to 85.5 cm tall. Many toddlers become pickier eaters around this age, which can sometimes worry parents—but it’s usually part of normal development.

Continue offering a balanced diet, encourage outdoor play, and keep an eye on their activity level rather than just the numbers.

Weight and Height of a 24-month-old Baby Boy

At two years old, baby boys typically weigh between 9.7 to 13.9 kg and measure 79.2 to 87.8 cm in height. They’re likely running around, showing off their independence, and maybe even starting to form small sentences.

This stage marks the end of the “baby” phase and the beginning of toddlerhood, bittersweet, but so much fun!

Why Growth Tracking Matters

Monitoring your baby’s height and weight isn’t just about numbers—it’s about making sure they’re healthy and developing properly. A consistent spot on the baby weight chart or boys height chart is usually a good sign, even if your child isn’t exactly at the average.

Growth patterns can also help detect early signs of underlying health issues. If there are significant drops or gains in percentiles, your pediatrician may explore further.

When to See a Doctor

Here are a few signs it’s time to consult your pediatrician:

  • Sudden drop in weight or height percentile
  • No weight gain over a long period
  • Very rapid weight gain
  • Height not increasing after several months
  • Developmental delays (not walking, talking, etc. on time)

If you ever feel uncertain about your child’s growth, don’t wait. Reach out to the experts at the Best Pediatric Hospital in Coimbatore to get personalized advice and support.

Tips to Support Healthy Growth

  • Breastfeed or formula feed consistently during the first 6 months. Learn more about the benefits of breastfeeding to understand how it supports both mother and baby’s health during this crucial stage.
  • Introduce solids around 6 months, focusing on nutrient-rich foods.
  • Encourage active play as your baby starts crawling and walking.
  • Stick to regular sleep routines—growth hormones are released during deep sleep.
  • Attend regular check-ups and maintain your baby’s vaccination schedule.

Conclusion

Watching your baby boy grow is one of the most joyful parts of parenting. While charts and numbers are helpful, every child has their own unique growth journey. The baby boy weight chart and height data are guides, not rules. Some babies are naturally smaller or larger than average—and that’s perfectly okay.

What matters most is that your little one is happy, active, and steadily developing. With the help of regular pediatric visits and tools like the baby growth chart, you’ll be able to track progress and feel confident every step of the way.

And if you ever need expert help or a check-up, don’t hesitate to visit Karpagam Hospital—your trusted partner in child health.

About Karpagam Hospital

Karpagam Hospital is dedicated to healthcare excellence, offering exceptional medical services with compassion and integrity. As a not-for-profit institution, we prioritize ethical medical research and actively support underserved rural communities. Our resources are responsibly managed to enhance education, patient care, and infrastructure, reflecting our commitment to societal and environmental well-being.

Disclaimer:

The information provided in this blog post is intended for general informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in this blog.

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