When do Beagles stop growing?

When do beagles stop growing

The beagle dog breed is one of the most popular dogs around.

Beagles are small to medium-sized dogs. Beagles are high-energy hounds and were originally bred as hunting dogs.

Beagles are often known as some of the most friendly dogs. They can make for a great family pet when they are well-trained and socialized.

This blog post will answer the question of when do beagles stop growing and provide a growth chart to help you determine at what age your Beagle may or may not still be growing.

At what age do Beagles stop growing?

Beagles reach their full height around eight months old and their adult weight around 18 months old. At around 18 months old the adult skeletal system of a beagle is now completely formed and weight will also remain steady.

What is the size of a full-grown Beagle?

An adult Beagle standing at 13 inches or less should weigh less than 20 pounds, according to the American Kennel Club’s Official Standard for the Beagle breed. An adult Beagle standing at 13 to 15 inches tall should weigh between 20 and 30 pounds.

How do I ensure my Beagle grows healthy?

Because the beagle breed is susceptible to obesity and other hereditary illnesses, it’s critical to track your beagle’s growth carefully.

A beagle puppy up to two weeks old should only be fed on its mother’s milk. However, If rejected by the mother, the owner of the litter will need to feed the pup by tube feeding or bottle feeding.

To guarantee that each puppy gets enough nutrition, check its weight every day.

Plan regular trips to a qualified veterinary clinic to check for any hereditary illnesses, health concerns, and general pet medical advice.

Carefully consider pet insurance to help pay for any unexpected treatments.

Keep your beagle’s weight in check

A measured and quality diet will ensure your beagle keeps a healthy weight and avoid health complications due to obesity.

An adult beagle will need no more than two feeds per day. Measure each meal in accordance with the food suppliers’ advice to avoid your beagle gaining weight.

Make adjustments to the quantity of food you give your beagle if they deviate from the recommended ideal weight for its age and size.

Daily walks, regular runs, training, and a good diet will ensure a healthy beagle and provide a fulfilling life for your beloved beagle.

Beagle weight and height chart

AGEBeagle (13″ & Under)Larger Beagle (13-15″)
1 month2-3 lb.3-4 lb.
2 month3-5 lb.4-7 lb.
3 month7-10 lb.8-11 lb.
4 month8-11 lb.9-12 lb.
5 month9-12 lb.10-13 lb.
6 month12-17 lb.14-18 lb.
7 month14-16 lb.16-20 lb.
8 month16-20 lb.18-22 lb.
9 month16-20 lb.20-26 lb.
10 month16-20 lb.20-28 lb.
11 month16-20 lb.20-30 lb.
12 month16-20 lb.20-30 lb.

Key stages of a Beagle puppies growth

Birth to two weeks old

The pup is blind (eyes remain closed) and has no sense of smell. The newborn also lacks baby teeth. For warmth and nutrition, the puppy will stay close to its mother and is entirely reliant on her.

If the mother rejects him, the pup will be tube-fed or bottle-fed by the owner of the litter to keep it alive. Newborns must be handled with great care; nevertheless, handling should begin gradually and learn to become used to human touch as it is the beginning of socialization.

Puppies should be weighed every day to ensure that they are getting the nutrition they need.

Because the puppy is reliant on its mother for warmth and nutrition, it will stay close to her and be completely dependent.

Three weeks old

The pup’s eyes will now begin to open, and as the weeks pass, their vision will improve. Hearing is also developing. The Beagle puppy, still close to its mother, will start to walk around and explore a little further away.

Human touching should increase, to allow the three-week-old Beagle to slowly become accustomed to human touch and voice.

Four weeks old

What a difference! The four-week-old Beagle is now vocally active and wants to explore the world.

Littermates are now interacting with one another and develop important socialization skills. The most essential is biting itself. When a pup “play bites” another, the sharp “Yelp” lets the puppy know that he or she bit too hard.

Beagle puppies will still receive the mother’s milk but also begin eating a soupy mixture for added nutrition.

Human socialization is still crucial at this age. It’s critical to start preparing the puppy for its new home at around eight weeks old, especially if this is going to be the pup’s first home. It’s also essential to acclimate the dog to typical household noises, such as having its feet handled gently, from this age until it reaches eight weeks old.

The first deworming should be administered.

Six-seven weeks old

The Beagle puppy’s daily existence is now ruled by exploration and interest. Bored of the whelping pen, the pup wants to explore. All rooms into which the Beagle puppy has access should be puppy-proofed.

The weaning stage is quickly coming to an end, as the pup’s main source of nutrition is a mush of puppy food and milk replacer.

Outside training should begin at 8 weeks old. The puppy should be able to respond to its name and have been exposed to various touching and typical household noises (such as doorbell, TV, washing machine noises, etc.)

The 2nd deworming should be completed at 6 weeks.

Eight weeks old

The two-month-old Beagle puppy is now weaned from the mother, and he or she is more comfortable exploring and playing in the house.

The dog is comfortable with its name and simple instructions. The pup knows where the food and water bowls are.

It’s at this age that most pups (if not remaining at their initial home) will be ready to join their new family.

Nine weeks old

The puppy should know its name and be on its way to following house training rules.

The third de-worming should be administered.

Twelve weeks old

The pup should be familiar with basic instructions and have adapted to the family life.

The fourth deworming should be performed.

Four months (Sixteen weeks)

Barking and sociability issues will be easier to correct.

Housebreaking should be mastered, though accidents are to be expected (particularly if the puppy is left alone for more than four hours).

The 5th de-worming should be done. 

Six months old

In most situations, it is advised that you transition your Beagle from puppy food to high-quality dog food tailored for small breed dogs.

If the Puppy is fed exclusively on puppy food, it will develop an obesity problem. This change should be made since puppy foods have considerably more calories than adult dog foods and if not done so, the Beagle could become overweight.

It will take several weeks to complete. Slowly begin combining both foods and changing the puppy to dog food ratio until the Beagle is acclimated to its new diet.

One year old

The Beagle puppy has now reached the age of one year, is fully trained in all areas, and is a well-adjusted member of the family.

While the dog’s weight gain will be much slower now, the dog is filling out as the skeleton system is reaching maturity and the beagle’s final size.

One and a half-year-old (Eighteen months) 

The adult skeleton is fully developed at this point, and the weight will remain constant. The Beagle has been well-trained, socialized, and fitter (and more eager) to go for a walk twice each day.

Factors that affect the growth of a Beagle

There are a few factors that can affect the average growth of your beagle pup.


A beagle’s sex hormones tell his body when to stop growing. Neutering or spaying your beagle at an early age can affect the growth plates leading it to become larger and taller than usual.

Average canine growth plate closure times – courtesy of Wizard of Paws

Growing over their average size can cause several joint and health concerns.

Poor diet

A beagle that is fed an unhealthy diet will not grow as healthily or reach its full-size potential. Make sure to feed your pup a healthy and balanced diet for optimal growth.


Just like humans, beagles have different genetics which can also determine when they stop growing. If you are unsure of when your beagle will stop growing, get in touch with the breeder to discuss when they believe the doggy growth plates are closed.

There are also medical conditions that can affect when a Beagle’s growth plates close or when their adult weight is reached.

Final thoughts on when a Beagle stops growing

Every beagle is different, so it can be hard to pinpoint exactly when they stop growing.

Make sure to ask the breeder when you have purchased your pup as well as monitor their growth and weight with regular vet visits.

Developing good habits from an early age will help keep your dog healthy when they are fully grown.


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