Pyrenean Mastiff weight by age
Typical weight by age for a Pyrenean Mastiff with an adult weight of about 155 lb (male) or 155 lb (female). The range shows where most puppies fall.
| Age | Male | Female |
|---|---|---|
| 2 months | 24 lbrange 16–32 lb | 24 lbrange 16–32 lb |
| 3 months | 41 lbrange 30–53 lb | 41 lbrange 30–53 lb |
| 4 months | 61 lbrange 47–76 lb | 61 lbrange 47–76 lb |
| 5 months | 83 lbrange 67–100 lb | 83 lbrange 67–100 lb |
| 6 months | 99 lbrange 80–116 lb | 99 lbrange 80–116 lb |
| 8 months | 122 lbrange 103–141 lb | 122 lbrange 103–141 lb |
| 10 months | 134 lbrange 113–150 lb | 134 lbrange 113–150 lb |
| 12 months | 141 lbrange 122–156 lb | 141 lbrange 122–156 lb |
Divide pounds by 2.2 for kilograms.
Adult weight
AKC breed page: 120-190 pounds. The calculator uses about 155 lb for males and 155 lb for females as the typical adult weight.
Common questions
How much should a Pyrenean Mastiff puppy weigh at 3 months?
A typical male Pyrenean Mastiff weighs about 41 lb at 3 months (most between 30 and 53 lb). A typical female weighs about 41 lb (most between 30 and 53 lb).
How much should a Pyrenean Mastiff puppy weigh at 6 months?
A typical male Pyrenean Mastiff weighs about 99 lb at 6 months (most between 80 and 116 lb). A typical female weighs about 99 lb (most between 80 and 116 lb).
How much does a Pyrenean Mastiff weigh at 1 year?
A typical male Pyrenean Mastiff weighs about 141 lb at 12 months (most between 122 and 156 lb). A typical female weighs about 141 lb (most between 122 and 156 lb).
When does a Pyrenean Mastiff stop gaining weight?
The typical Pyrenean Mastiff puppy reaches about 90% of its adult weight around 12 months and 95% around 18 months. Large and giant breeds fill out for longer than small ones.
How accurate is the Pyrenean Mastiff weight calculator?
Across our test dogs the typical miss was about 11% of adult weight, smaller for older puppies. Your puppy can land outside the range. See the methods page.
Other breeds
Weight standard: AKC breed page. Growth curves: our analysis of open data from Salt et al. (2017), CC BY 4.0. An estimate, not veterinary advice. Methods.