When Is A St. Bernard Full Grown?


The St. Bernard is a large breed of dog that is renowned for its size, strength, and intelligence. These dogs can grow to be quite large, which raises the question: when is a St. Bernard full grown? In this article, we’ll take a closer look at the growth patterns of St. Bernards and explore the factors that contribute to their ultimate size.

How Big Do St. Bernards Get?

St. Bernards are known for their impressive size, with males typically growing to be between 28 and 30 inches tall at the shoulder and weighing between 140 and 180 pounds. Females are slightly smaller, typically growing to be between 26 and 28 inches tall and weighing between 120 and 140 pounds.

When Do St. Bernards Stop Growing?

Most St. Bernards will stop growing in height around 18 months of age, with their weight continuing to increase until they reach the age of 2 or 3. However, there can be some variation from dog to dog, with some St. Bernards reaching their full size as early as 12 months of age and others continuing to grow until they are 4 years old.

Factors that Contribute to Growth

There are several factors that can influence the growth of a St. Bernard, including genetics, nutrition, and exercise. genetics play a major role in determining a dog’s ultimate size, with larger parents tending to produce larger offspring. Proper nutrition is also critical for healthy growth, as St. Bernards require a balanced diet to support their physical development. And while regular exercise is important for maintaining overall health, it is important to ensure that young St. Bernards do not overexert themselves during periods of rapid growth, as this can lead to injury.


St. bernards are large dogs that can grow to be quite impressive in size. while most st. bernards will stop growing in height around 18 months of age, their weight may continue to increase until they are 2 or 3 years old. factors such as genetics, nutrition, and exercise can all play a role in the growth of a st. bernard, making it important for owners to provide their dogs with proper care and attention.

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