Home / Puppy growth chart / Great Pyrenees
Great Pyrenees growth chart
How much should a Great Pyrenees puppy weigh? Find the row that matches your puppy's sex and expected adult weight, and read across by age.
Great Pyrenees puppy weight chart (lb)
| Adult weight | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 8 mo | 10 mo | 12 mo | 15 mo | 18 mo |
|---|---|---|---|---|---|---|---|---|---|---|
| Male (minimum), 100 lb | 13 | 22 | 33 | 43 | 52 | 66 | 78 | 86 | 94 | 98 |
| Female (minimum), 85 lb | 11 | 19 | 28 | 37 | 44 | 56 | 67 | 73 | 80 | 83 |
Great Pyrenees puppy weight chart (kg)
| Adult weight | 2 mo | 3 mo | 4 mo | 5 mo | 6 mo | 8 mo | 10 mo | 12 mo | 15 mo | 18 mo |
|---|---|---|---|---|---|---|---|---|---|---|
| Male (minimum), 45 kg | 6.0 | 10 | 15 | 20 | 24 | 30 | 36 | 39 | 43 | 44 |
| Female (minimum), 39 kg | 5.1 | 8.7 | 13 | 17 | 20 | 26 | 30 | 33 | 36 | 38 |
Typical weights by month. Individual puppies often sit 10–15% above or below these numbers. Last reviewed October 7, 2026.
The AKC gives only a minimum adult weight for this breed, so the chart shows puppies growing to that minimum. Many adults end up heavier.
How big does a Great Pyrenees get?
According to the American Kennel Club's breed profile for the Great Pyrenees, adults weigh: male 100 lb and up; female 85 lb and up. Life expectancy is 10–12 years.
| Weight | Height | |
|---|---|---|
| Male | 100 lb and up | 27–32 in |
| Female | 85 lb and up | 25–29 in |
When does a Great Pyrenees stop growing?
Great Pyrenees grow like other giant-sized dogs: they are close to adult weight at around 18 months. At 6 months a typical Great Pyrenees puppy has reached about 52% of its adult weight.
To estimate your own puppy's adult weight from its current weight and age, use the puppy weight calculator and choose "Giant" as the expected adult size.
How the chart is made
The adult weights come from the AKC breed profile. The weight at each month is estimated with our giant-breed growth curve, which gives the share of adult weight a typical puppy of that size reaches at each age. The curves are simplified from published research on dog growth, including the growth standard charts by Salt and colleagues (PLOS ONE, 2017).
If your puppy is well below or above the chart, stops gaining weight, or looks very thin or round, ask your vet to check its body condition.
Questions people ask
How much should a 3-month-old Great Pyrenees weigh?
Typically about 19–22 lb, depending on sex and how big the dog will be as an adult.
How much should a 6-month-old Great Pyrenees weigh?
Typically about 44–52 lb, roughly 52% of adult weight.
When is a Great Pyrenees full grown?
Most Great Pyrenees are close to their adult weight at around 18 months, though many keep filling out with muscle for a while after that.
How big will my Great Pyrenees get?
The AKC lists adult weights of male 100 lb and up; female 85 lb and up. Your puppy's parents are a good guide to where in that range it will end up.