
Saint Bernard dogs are a majestic breed, known for their gentle giant reputation. They can grow to be quite large, with males reaching up to 30 inches in height.
Their massive size is matched by their impressive weight, with adults typically weighing between 120 and 180 pounds. This makes them a formidable companion for those who can provide the necessary care and attention.
Saint Bernard Growth and Size
St. Bernards grow rapidly, with most of their growth occurring in the first year. They can weigh between 15-35 pounds at 2 months old.
At 6 months old, a female Saint Bernard will weigh about 70-90 pounds, while her male counterpart already clocks in at 85-100 pounds.
As they grow, it's essential to track and measure their size to ensure they reach their ideal full size and avoid health conditions like obesity. By 2 years old, a Saint Bernard can weigh anywhere from 120-180 pounds.
On a similar theme: Old Miniature Pinscher

Here's a breakdown of a Saint Bernard's growth stages:
Keep in mind that these are just estimates, and every puppy grows at its own rate. If you notice your Saint Bernard puppy is significantly ahead of or behind these ranges, it's always best to consult with your veterinarian to ensure their health and happiness.
Size of 6 Month Old St. Bernard
At 6 months old, a St. Bernard is already quite large. A female Saint Bernard typically weighs around 70-90 pounds at this age.
Male Saint Bernards are even bigger, with most weighing between 85-100 pounds at 6 months old.
A different take: 6 Month English Mastiff
Size of a 1 Year Old St. Bernard
At 1 year old, a Saint Bernard is still growing, but it's a great time to assess their size. A female Saint Bernard weighs between 110-130 pounds at this age, while a male can weigh anywhere from 130-165 pounds.
The growth rate slows down significantly after 1 year, so it's essential to monitor their weight and height to ensure they're developing properly. According to the growth chart, a 1-year-old Saint Bernard's height can range from 25-40 inches.
Here's a summary of the average weight and height of a 1-year-old Saint Bernard:
Keep in mind that these are just averages, and your Saint Bernard's size may vary depending on their lineage and overall health.
Will My Business Grow?
If your business is like a St. Bernard puppy, it's probably still growing and filling out. It's normal for growth to slow down after the first year, but there's still room to expand in key areas.
Breeders know the size of the parents and previous litters, giving them a unique estimate of your business's predicted size. They're like a growth chart for your company.
If you're not sure of your business's exact age, look at its foundations and see if they're solid. If they're a bit rough around the edges, it's likely still growing.
An 8-Month-Old Weigh?
An average St. Bernard male should weigh between 100-120 pounds at 8 months old, while females of the same age should weigh 85-110 pounds.
At 8 months, your St. Bernard puppy will be about 75% of their mature height, which means they'll be around 21-23 inches tall and 19-21 inches tall at the shoulders.
To give you a better idea, here's a breakdown of what to expect at 8 months:
Remember, every puppy grows at its own rate, so if your pup is significantly ahead or behind these ranges, it's always best to consult with your veterinarian to ensure they're growing healthily and happily.
4 Factors Affecting Size
Genetics play a significant role in determining the size of a Saint Bernard, and it's not just about the puppy's health. Conditions like obesity and dysplasia as a puppy can stunt their full growth.
Looking at the parents can give you a general idea of what your Saint Bernard might look like as an adult. Larger parents mean it's a safe bet your Saint will be big too.

A Saint Bernard's diet is another crucial factor that affects their adult size. Genetics determine the size of your Saint in two ways: health and the parent size.
Exercise also plays a role in determining the size of a Saint Bernard, but it's not the most significant factor. Larger parents mean it's a safe bet your Saint will be big too.
The sex of your Saint Bernard can also impact their adult size, with males generally being larger than females. Conditions like obesity and dysplasia as a puppy can stunt their full growth.
Related reading: Adult Puggle Dog
Measuring and Monitoring
To measure your St. Bernard's height, have them stand straight against a wall with their feet spread evenly apart, and locate their withers, the bony midway point between their shoulder blades. Measure up from the ground to the withers against your wall and mark the spot with a piece of painter's tape.
You can use the following growth chart to track your St. Bernard's progress:
St. Bernards typically stop growing by two years old, but they may still be filling out their chest at this age.
How to Measure Your

Measuring your St. Bernard is an essential part of monitoring their growth and development. To do this, you'll need a tape measure to record their height and weight at regular intervals.
You can measure your St. Bernard's height by standing them against a wall and using a tape measure to record the height from the ground to the top of their shoulder. This is usually around 26-30 inches for females and 28-30 inches for males.
For weight, you can use a baby scale or a pet scale to record your St. Bernard's weight at each measurement. This is usually done at the same time as the height measurement.
Here's a rough guide to what you can expect at different ages:
- Newborn St. Bernards typically weigh between 1-1.3 pounds and stand around 3-3.5 inches tall.
- At 6 months old, a female St. Bernard weighs around 70-90 pounds, while a male weighs around 85-100 pounds.
- By 1 year old, a female St. Bernard typically weighs 100-130 pounds, while a male weighs 130-165 pounds.
Keep in mind that these are just rough estimates, and every St. Bernard grows at their own rate. It's always a good idea to consult with your veterinarian if you have any concerns about your St. Bernard's growth or development.
Recommended read: Lifespan of a St Bernard Dog
When Do Plants Stop Growing?

Plants, like St. Bernards, have a growth rate that slows down over time. They tend to accumulate most of their adult size by the time they're a year old, just like St. Bernards.
A plant's growth can vary depending on factors like sunlight, water, and nutrients, but in general, most plants stop growing significantly after their second year.
A different take: St Bernard Dog Training
Saint Bernard Size FAQs
At two months, Saint Bernard puppies typically weigh between 15-35 pounds and stand 10-15 inches tall.
Most of a Saint Bernard's growth occurs in their first year, so regular tracking and measuring are crucial to ensure they reach their ideal full size and avoid health issues like obesity.
By four months, Saint Bernard puppies usually weigh between 45-65 pounds and stand 15-20 inches tall.
By six months, they'll weigh between 65-90 pounds and stand 19-25 inches tall.
Here's a breakdown of your Saint Bernard's expected growth:
By two years, Saint Bernards typically weigh between 120-180 pounds and stand 25-45 inches tall.
Appearance
The St Bernard is an imposing breed, with males reaching a shoulder height of up to 90cm and weighing up to 80kg.
Females are also quite large, reaching up to 80cm in height.
Their bulky head, strong throat, and powerful body lend them a remarkable appearance that can be a bit intimidating at first, but don't worry, they're gentle giants.
St Bernards come in two varieties: long-haired and short-haired, although the long-haired variety is currently more popular.
Their fur is of medium length and lies close and flat to the body, with light waves allowed.
The colour of their fur is white with reddish brown or reddish brown with white in different nuances.
They have specific markings, including white markings on the chest, paws, nose, throat, and tip of the tail.
A white ruff around the neck and symmetrical dark facial mask are the finishing touches for these perfect canine giants.
See what others are reading: Long Coat Chesapeake Bay Retriever
Featured Images: pexels.com
