Close this search box.

How Big Can a Great Dane Get (Discovering the Colossi of the Dog Universe)?

The majestic size of Great Danes often leaves many in awe, but this impressive stature comes with its own set of considerations. From understanding the genetic to nutritional factors that drive their growth, to addressing common health issues they face due to their size, gaining insight into these aspects is crucial. Delve into the journey of how Great Danes grow, and equip yourself with the knowledge to provide the best care for these remarkable dogs.
How Big Can a Great Dane Get

Table of Contents

Great Danes are among the gentle giants of the dog world. With their towering height and impressive stance, they are a breed like no other. This article explores the factors that contribute to the size of Great Danes, and what you can expect as they grow. Let’s dive into the world of these majestic animals and find out just how big a Great Dane can get.

The Genetic Basis of Size in Great Danes

Great Danes haven’t always been the giants we know today. Over centuries, breeders combined different breeds to create a dog that was not only tall but also strong and gentle. The genes they inherited play a major role in determining their size.

The size of a Great Dane is a fascinating blend of various dog breeds that came together to create this gentle giant. With ancestors like the Greyhound known for speed and the Mastiff known for strength, the genetic blend is just right for a tall, strong, and gentle dog. Genetics is like the blueprint that guides how big a Great Dane can get.

How Much Should a Great Dane Weigh?

When it comes to weight, a male Great Dane typically weighs between 140 to 175 pounds (63.5 – 79.4 kg) while a female weighs a bit less, around 110 to 140 pounds (49.9 – 63.5 kg). It’s not just about what they eat; their exercise routine, overall health, and genetics also play a part in determining their weight.

It’s essential to maintain a balanced diet and regular exercise routine to ensure your Great Dane grows to its full potential. Providing the right amount of nutrients is like giving the building blocks needed for growth.

How Big Does a Female Great Dane Get?

Female Great Danes are generally smaller than males, but they still are quite large compared to other breeds. A full-grown female Great Dane stands about 28 to 32 inches (71 – 81 cm) tall at the shoulder and weighs between 110 to 140 pounds (49.9 – 63.5 kg).

Their size is more than just an impressive feature; it’s a testament to the breed’s history and the careful selection by breeders over centuries. Despite their size, female Great Danes carry their height and weight with a gentle grace.

When Are Great Danes Full Grown?

Growing to such a height takes a bit of time. Great Danes reach their full height by the age of 2 but can continue to fill out, gaining weight until they are about 3 years old.

During this growth period, it’s crucial to provide a nutritious diet to support their developing bones and muscles. A balanced diet, combined with regular checkups with the vet, will ensure your Great Dane grows strong and healthy.

Why Is My Great Dane So Big?

The towering stature of a Great Dane can sometimes leave you wondering, “Why is my Great Dane so big?” Well, the size of your Great Dane isn’t just a matter of chance; it’s a blend of genetics, nutrition, and overall health. Let’s unravel the factors that contribute to your Great Dane’s impressive size.

Genetics at Play

Great Danes are genetically predisposed to be large dogs. Their ancestry traces back to breeds known for their significant size and strength. If your Great Dane is on the larger side, it’s likely because of the genes inherited from its parents and ancestors. It’s like having a family of tall people; it’s in the genes!

Nutritional Boost

The food your Great Dane eats plays a vital role in determining its size. A diet rich in the right nutrients can fuel your dog’s growth. Protein is a big player in this growth game, aiding in muscle development, while fats provide the energy needed for that growth. It’s essential to follow a balanced diet that meets the nutritional needs of this large breed. Remember, a well-fed Great Dane is a growing Great Dane.

Health Factors

Sometimes, the size of your Great Dane could be influenced by its overall health. Certain health conditions might lead to an increase in size, while others might stunt growth. It’s always a good practice to have regular vet checkups to ensure your Great Dane is growing as it should and to address any health concerns that may arise.

Exercise and Activity

Exercise is another component that can influence the size of your Great Dane. Regular exercise helps to keep your Great Dane in good shape, promoting muscle growth and overall development. It’s not just about letting them roam in the backyard; engaging in activities that challenge them physically can contribute to their size.

The size of your Great Dane is a mix of genetics, nutrition, health, and physical activity. While you might not have control over the genetic aspect, providing a balanced diet, regular exercise, and proper healthcare can ensure your Great Dane grows to its full potential. And while their size may be imposing, it’s part of what makes them the gentle giants we love. So, embrace their size, provide the care they need, and enjoy the companionship of your larger-than-life furry friend!

Why Is My Great Dane So Small?

On the flip side, some Great Danes might grow to be smaller than expected. Factors like inadequate nutrition, lack of exercise, or underlying health issues can be the culprits.

Great Danes are known for their large size, but certain health issues can potentially hinder their growth, leading them to be smaller than the typical size for their breed. Below are some health conditions that might affect the size of a Great Dane:

Growth Hormone-Responsive Dermatoses

This is a condition where there’s a deficiency in growth hormone, which is essential for the proper growth and development of the dog. This condition can cause Great Danes to be smaller than usual, and it often comes with skin issues.


Through the production of thyroid hormones, the thyroid gland has a pivotal role in managing metabolism and growth. If the gland is underactive, a condition referred to as hypothyroidism, it can slow down growth and lead to a smaller stature.


Malnutrition during the growth phase can significantly affect the size of a Great Dane. If they are not receiving the necessary nutrients, especially protein and calcium which are vital for bone and muscle development, their growth can be stunted.

Parasitic Infestations

Parasites like worms can rob your Great Dane of essential nutrients, which can in turn affect their growth. A heavy parasitic load can lead to malnourishment, making it difficult for your dog to reach its full-size potential.

Chronic Diseases

Chronic diseases, especially those affecting the gastrointestinal system, can hinder nutrient absorption, leading to stunted growth. Conditions like chronic diarrhea or inflammatory bowel disease can be particularly detrimental.

Genetic Disorders

Certain genetic disorders can affect the size and overall growth of Great Danes. If a genetic disorder interferes with the dog’s ability to metabolize food or utilize nutrients, it can result in a smaller size.

Bone Diseases

Bone diseases such as Hypertrophic Osteodystrophy (HOD) or Osteochondritis Dissecans (OCD) can affect the growth and development of the bones, potentially leading to a smaller size or abnormal growth.

When you notice your Great Dane is smaller than average or isn’t growing as expected, it’s essential to consult with a veterinarian. They can provide a proper diagnosis and suggest a treatment plan to address any underlying health issues. Your vet might suggest a change in diet, medication, or other interventions to support your Great Dane’s growth and overall health.


The majestic size of Great Danes is a blend of genetics, good nutrition, and proper care. Understanding the factors that contribute to their size and the care they require can help ensure your Great Dane grows to be a healthy, happy companion. So, whether your Great Dane is a gentle giant or on the smaller side, with the right care, they will thrive and continue to be a loving member of your family.