Are you considering adding a Boxer puppy to your family, but you’re unsure how big they’ll get? Or perhaps you already have a Boxer, and you’re curious if their growth is on track. Fortunately, we have all the details you need to monitor your Boxer’s growth, weight, and overall development from puppyhood through adulthood.

Boxers are a robust, energetic breed that makes a loyal and playful companion. Keep reading to learn about the average growth milestones for male and female Boxers, what to expect at each stage, and how you can help your Boxer reach their full potential in a healthy way.
Overview: Fun Facts About the Boxer
Boxers are known for their lively and affectionate nature. Originally bred for hunting and working, they now make fantastic family pets. Boxers are protective and often take on the role of a reliable watchdog. However, they’re also gentle and love being around their human family members. With proper care, Boxers typically live between 10 to 12 years.
How Big Do Boxers Get?

According to the American Kennel Club (AKC), the breed standard for adult male Boxers is about 23-25 inches (58 to 64 cm) tall, with a weight range of 65-80 pounds (29 to 36 kg). Female Boxers are generally a bit smaller, standing around 21.5-23.5 inches (55 to 60 cm) tall and weighing 50 pounds (23 kg).
While every dog is unique, most Boxers reach their full height and weight between 18 and 24 months. If you’re uncertain whether your Boxer is still growing, look at their paws; large, disproportionate paws often indicate they still have some growing to do. For a more accurate prediction, you can consult your breeder or consider a DNA test for growth estimates.
Don’t miss out: A Complete Guide to the Adorable Miniature Boxer
Average Boxer Weight Chart: Male and Female

Boxer puppies go through rapid growth spurts, especially during their first year. Here’s a quick look at the expected weight milestones for male and female Boxer puppies.
Female Boxer Growth Chart
Age | Average Weight |
1 month | 4.8-8 lbs (2.1-3.6 kg) |
2 months | 11-17 lbs (4.9-7.7 kg) |
3 months | 22-26 lbs (9.9-11.7 kg) |
4 months | 28-30 lbs (12.7-13.6 kg) |
5 months | 33-37 lbs (13.9-16.7 kg) |
6 months | 39-44 lbs (17.6-19.9 kg) |
1 year | 50 lbs (23 kg) |
2 years | 50 lbs (23 kg) |
Male Boxer Growth Chart
Age | Average Weight |
1 month | 5.5-9 lbs (2.4-4 kg) |
2 months | 16-20 lbs (7.2-9 kg) |
3 months | 22-26 lbs (9.9-11.7 kg) |
4 months | 30-35 lbs (13.6-15.8 kg) |
6 months | 41-48 lbs (18.5-21.7 kg) |
1 year | 57-68 lbs (25.8-30.8 kg) |
2 years | 65-80 lbs (29-36 kg) |
Boxer Puppy Growth and Development Stages (with Pictures)
Curious about how fast your Boxer puppy will grow? Let’s break down the key growth stages week by week, from a tiny newborn to a playful adult, so you’ll know what to expect as your pup matures.
0 to 2 Weeks Old: Newborn Boxer Puppy

At birth, Boxer puppies typically weigh between 2.5 to 3.2 pounds (1.1 to 1.4 kg). These early weeks are critical as your pup grows rapidly. By the end of the second week, your Boxer should weigh approximately 4.5 to 5.5 pounds (2 to 2.4 kg). During this stage, their eyes and ears begin to open, and they start to wriggle around more actively.
3 to 8 Weeks Old: Boxer Puppy Milestones

Between three and eight weeks, Boxer puppies experience significant development. Their weight increases steadily, ranging from 6 to 7 pounds (2.5 to 3 kg) at three weeks to around 17 to 19 pounds (8 to 8.5 kg) by eight weeks.
This period is also when your puppy will:
- Begin socializing with littermates.
- Develop their teeth.
- Be ready for their first vaccinations around six to eight weeks.
9 to 12 Weeks Old: Boxer Puppy at 3 Months

By the time your Boxer puppy reaches three months, they will weigh approximately 25.5 to 28.5 pounds (11 to 13 kg).
At this stage, your pup will be highly energetic, curious, and eager to explore their surroundings. Regular training and positive reinforcement become essential as their playful personality emerges.
16 Weeks Old: Boxer Puppy at 4 Months

By four months, your Boxer puppy may weigh between 35.5 to 40 pounds (16 to 18 kg). Their growth will remain steady, and they’ll start developing more muscular features. This is an excellent time to introduce them to longer walks, socializing with other dogs, and consistent obedience training.
6 Months Old: The Halfway Mark

At six months, your Boxer puppy’s weight will differ slightly depending on their gender:
- Males: Approximately 41 to 48 pounds (18.5 to 21.7 kg).
- Females: About 39 to 44 pounds (17.6 to 19.9 kg).
Your pup will also be about 75% of their full height, standing 17 to 19 inches (43.1 to 48.2 cm) for males and 16 to 18 inches (40.6 to 45.7 cm) for females.
At this stage, they’ll be more independent but still require regular training to manage their boundless energy.
1 Year Old: Your Boxer Reaches Adulthood

By their first birthday, your Boxer will have grown into a strong, energetic adult:
- Males: Weigh between 65 and 80 pounds (29 to 36 kg).
- Females: Weigh around 50 pounds (23 kg).
Although they’ve reached their full size, their playful and affectionate nature will remain. Boxers are known for their lively personalities and strong bonds with their families, making them wonderful lifelong companions.
Key Factors Influencing Boxer Growth

Every Boxer grows at their own pace, but several key factors play a significant role in shaping their development. Understanding these elements can help ensure your Boxer reaches their full potential in size, health, and vitality.
Genetics: The Blueprint for Growth
A Boxer’s genetic background plays a significant role in their size and growth rate. Reputable breeders can provide information about the puppy’s lineage, which can give you an idea of how large your Boxer might become.
Nutrition: Building Blocks for a Healthy Boxer
Proper nutrition is crucial for a growing Boxer. A diet rich in high-quality protein supports muscle growth, while essential vitamins and minerals promote bone health. Avoid dog foods high in fillers and fat, which can lead to obesity and hinder growth.
Spaying or Neutering: Timing Matters
Spaying or neutering doesn’t directly impact growth but can affect growth plate closure. For Boxers, it’s generally recommended to wait until they are around two years old to prevent potential joint issues.
Physical Activity: Balancing Play and Protection
Boxers are active dogs that require ample exercise. However, overexertion during puppyhood can damage growing joints and bones. It’s best to keep high-impact activities like jogging to a minimum until they’re fully developed.
Health Conditions: Addressing Potential Challenges
Boxers can be prone to certain health conditions like hip dysplasia, bloat, and heart disease, which can affect their growth and overall health. Regular vet check-ups, a balanced diet, and moderate exercise help ensure your Boxer stays on track developmentally.
Common Questions About Boxer Growth

How Can I Tell If My Boxer Is at a Healthy Weight?
You can check your Boxer’s weight by feeling their ribs. If you can feel them but not see them, your Boxer is likely at a healthy weight. If the ribs are difficult to feel, they may be overweight. Consult your vet for confirmation.
What Should I Do If My Boxer is Growing Too Fast?
If you notice rapid growth, consult your vet. Larger breeds like Boxers are susceptible to growth disorders, so it’s essential to monitor their diet and activity. Feeding multiple small meals daily and avoiding free-feeding can help regulate growth.
How Can I Help My Boxer Lose Weight if They Are Overweight?

If your Boxer is carrying extra pounds, assess their diet and exercise routine. Reduce treats and table scraps, and gradually increase their activity. Speak with your veterinarian for a balanced weight-loss plan tailored to your dog’s needs.
Monitoring Your Boxer’s Growth
Keeping track of your Boxer’s growth helps you ensure they are developing healthily. Here’s what to look out for:
- Body Condition: The Boxer Body Condition Score (BCS) can help you assess whether your Boxer is underweight, ideal weight, or overweight. Ideally, your Boxer should fall in the middle of the 1-9 BCS scale, around a score of 5.
- Proportionate Growth: Boxers should have a balanced, lean build. As they mature, their chest will broaden, and they’ll develop a muscular, athletic frame.
- Weight Gain: Watch for weight gain patterns, as sudden weight changes can indicate underlying health issues.
Boxer Mixes and Size Variations
If you have a Boxer mix, their size may vary depending on the other breed involved. For example, a Boxer-Lab mix may inherit the sturdy build of both parents, while a Boxer-Doodle mix might have a leaner frame.
To learn more about Boxer-mixed dogs, check out our guide on Boxer Mixes: Traits and Sizes.
Final Thoughts on Boxer Growth and Weight

Boxers are wonderful family pets, known for their affectionate and loyal nature. By monitoring their growth stages, providing proper nutrition, and staying vigilant about their health, you can help your Boxer develop into a happy, healthy companion. If you’re ever concerned about your Boxer’s growth, consult with your veterinarian to ensure everything is on track.
Has your Boxer’s growth journey been on track? Share your experience in the comments below!