How Much Does An 8 Week Old Great Pyrenees Puppy Weigh

Great Pyrenees also known as Pyrenean Mountain Dogs or “Pyrs” — are big, beautiful dogs with thick, white coats. The breed gets its name after the snowy Pyrenees mountain range separating the borders of France and Spain, where the dogs were originally bred to protect sheep from predators.

Puppies, especially Great Pyrenees puppies, grow faster than weeds – I’m pretty sure you can see them grow by the hour. Since they grow so quickly, I thought it would be fun to track Kiska’s growth, both physical and developmental, each week.

All dog breeds have some size variation in adult dogs. This calculator can help give you an idea of the expected adult size of your pup. Note that the weight before 6-8 weeks of age does not say a lot about the adult size of a dog. Especially high or low birth weights can be due to intrauterine placement (essentially where the pup was in the mom’s tummy and how much nutrition he got). Pups with the lowest birthweight can grow up to be the largest of the litter, and the largest can end up as the smallest!

Great Pyrenees Growth Chart 

We have built a growth chart for your Great Pyrenees to help guide you through your pup’s development. It is important to note that male and female dogs are not the same size.

Female dogs are generally smaller than male dogs, so you cannot use the same Great Pyrenees growth chart for them.

For example, if your female pup is 30 pounds at the age of 3 months, you can expect her to weigh about 63 when she is 7 months.

Likewise, a male puppy who is 37 pounds at 3 months will likely weigh 77 pounds at the age of 7 months. Using these estimates can help you work out whether your dog is growing at the right weight for his individual size.

How Big Do Great Pyrenees Get?

According to the American Kennel Club (AKC) Official Breed Standards1, the size of a male Great Pyrenees weighs over 100 pounds and stands 27 to 32 inches in height from the ground to the top of the shoulders. Comparatively, the female Great Pyrenees is smaller in size, weighing over 85 pounds and standing between 25 and 29 inches tall.

According to the AKC, a mature Pyrenean Mountain Dog should have a muscular build beneath its thick coat, with a short, strong neck, moderately deep chest, and a long tail that hangs low to the ground. Dogs of this breed are characterized by an elegant gait and majestic appearance.

How Big Are Great Pyrenees At Six Months Old?

At six months, a male Great Pyrenees will weigh approximately 70 to 80 pounds. In contrast, a six-month-old female Great Pyrenees will weigh less, between 50 to 60 pounds. Both males and females will have a significant amount of growing left to do before they reach their adult size.

When Do Great Pyrenees Stop Growing?

As a giant breed, Great Pyrenees growth stages are slower and require more time than most dogs to reach their mature size. You can expect your puppy to be close to full size around their first birthday, but most Great Pyrenees puppies will need up to two years to fully mature and fill out their chest2.

How Much More Will My Great Pyrenees Puppy Grow?

There are three ways to predict the size of a Great Pyrenees at maturity:

  1. Age. You can estimate where your puppy is at in the Great Pyrenees growth stage based on how old they are. Most Pyrs will need up to 24 months to reach their adult size, so if they are less than two years old, you can expect them to continue growing.
  2. Genetics. Most puppies do not grow to be larger than their biggest parent. If you purchased your Great Pyrenees pup through a breeder, contact them for more information about your puppy’s expected size based on their parents and how large past litters grew to be.
  3. Paw Size. Lastly, you can take a look at your puppy’s paws. Oversized paws are a classic puppy feature indicating that your puppy is still growing.

How Do I Make Sure My Great Pyrenees Is Healthy?

Our Great Pyrenees puppies are cherished members of our family, and they deserve the best. One of the best ways to help your Great Pyrenees live a happy and fulfilling life is through excellent, gold-standard veterinary care, which can help your pup minimize or avoid health problems in the future.

As is the case with all purebred dog breeds, Great Pyrenees are more prone to certain genetic diseases and conditions. In particular, Great Pyrenees are more susceptible to hip dysplasia, bone inflammation, and osteosarcoma3. Preventative veterinary care can screen for diseases that your Great Pyrenees is more vulnerable to, which can help your veterinarian find diseases earlier, which often helps your dog’s overall prognosis.

How Long Does It Take For A Great Pyrenees To Be Full Grown?

You can expect your Great Pyrenees to reach his adult size somewhere around 18-24 months. Most Great Pyrenees come very close to their full-grown height by their first birthday but continue to gain weight, build muscles and fill out afterwards for several more months.

Especially in dogs that have not yet been spayed or neutered the chest and shoulders become broader and more muscular.

Your Great Pyrenees’ coat will also continue to become thicker and gain volume. This might appear as if your dog himself is growing – but some of it is probably “just fluff”.

How Much Should A 1 Year Old Great Pyrenees Weight?

A male Great Pyrenees should weight at least 95-110 pounds at 1 year of age. A female Great Pyrenees would be slightly smaller at least 80-95 pounds. You can expect your dog to gain another 5-15 pounds between his first and second birthday.

If your Great Pyrenees is considerably smaller and lighter, take him to the vet. An intestinal parasite might cause malnutrition and keep him from growing. As a large breed, Great Pyrenees are prone to being “skinny teenagers” and will require a lot of daily calories during their rapid growth in the first year.

When Do Great Pyrenees Stop Growing?

A common question is when do Great Pyrenees stop growing. After all, they are large dogs, so you might be wondering. By the time that your dog has reached his first birthday, he should be about his full height.

He is likely to continue to gain weight and to fill out all the way up to 18 – 24 months, but the bulk of his growth should happen before his first birthday.

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