Saint Bernard weight by age
Typical weight by age for a Saint Bernard with an adult weight of about 160 lb (male) or 130 lb (female). The range shows where most puppies fall.
| Age | Male | Female |
|---|---|---|
| 2 months | 25 lbrange 17–34 lb | 20 lbrange 14–27 lb |
| 3 months | 43 lbrange 31–55 lb | 35 lbrange 25–45 lb |
| 4 months | 63 lbrange 48–78 lb | 51 lbrange 39–64 lb |
| 5 months | 86 lbrange 69–103 lb | 70 lbrange 56–84 lb |
| 6 months | 102 lbrange 82–120 lb | 83 lbrange 67–98 lb |
| 8 months | 126 lbrange 106–145 lb | 103 lbrange 86–118 lb |
| 10 months | 138 lbrange 117–155 lb | 112 lbrange 95–126 lb |
| 12 months | 146 lbrange 126–160 lb | 118 lbrange 103–130 lb |
Divide pounds by 2.2 for kilograms.
Adult weight
AKC breed page: 140-180 pounds (male), 120-140 pounds (female). The calculator uses about 160 lb for males and 130 lb for females as the typical adult weight.
Common questions
How much should a Saint Bernard puppy weigh at 3 months?
A typical male Saint Bernard weighs about 43 lb at 3 months (most between 31 and 55 lb). A typical female weighs about 35 lb (most between 25 and 45 lb).
How much should a Saint Bernard puppy weigh at 6 months?
A typical male Saint Bernard weighs about 102 lb at 6 months (most between 82 and 120 lb). A typical female weighs about 83 lb (most between 67 and 98 lb).
How much does a Saint Bernard weigh at 1 year?
A typical male Saint Bernard weighs about 146 lb at 12 months (most between 126 and 160 lb). A typical female weighs about 118 lb (most between 103 and 130 lb).
When does a Saint Bernard stop gaining weight?
The typical Saint Bernard 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 Saint Bernard 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.